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    • Rubus

    Tough, Textured Evergreen

    Rubus rolfei, formerly known widely as Rubus calycinoides or Rubus pentalobus, is a standout choice for gardeners seeking a beautiful, resilient, and low-maintenance groundcover. Here's why Emerald Carpet Creeping Raspberry deserves a place in your landscape:

    • Exceptional Textured Foliage: Forget boring groundcovers! Rubus rolfei boasts distinctive, crinkled or quilted-looking, 3-to-5 lobed leaves. This unique texture adds depth and interest to garden beds and slopes.
    • Year-Round Interest: Depending on your climate (reliably evergreen in zones 7-9, semi-evergreen with bronze/burgundy winter color in zones 5b/6), this plant provides continuous visual appeal throughout the year.
    • Excellent Weed Suppression: Once established, its dense, low-growing mat (typically 3-6 inches tall) effectively smothers most weeds, reducing garden chores significantly.
    • Superb Erosion Control: The stems root where they touch the ground, creating a network that helps stabilize soil on slopes, banks, and hillsides.
    • Adaptable & Tough: It thrives in a range of conditions, tolerating full sun to partial shade and various soil types (provided they are well-drained). It is also relatively drought-tolerant once established.
    • Low Maintenance: Requires minimal care – no deadheading, little to no fertilizing needed, and only occasional pruning to manage spread if desired.
    • Deer and Rabbit Resistant: Generally ignored by Browse deer and rabbits, making it a reliable choice in areas where these animals are common.
    • Versatile Use: Perfect for mass plantings, covering slopes, cascading over retaining walls, edging pathways, planting between stepping stones, and even spilling from containers.
    • Subtle Spring Flowers & Fruit: While not grown primarily for them, it produces small, white, raspberry-like flowers in spring, occasionally followed by small, edible (though often sparse) raspberry-like fruits in summer.

    Hardiness: USDA Zones (5b) 6 - 9. In colder zones (5b/6a), it may act as a semi-evergreen or deciduous groundcover and benefit from winter protection (like snow cover or a layer of evergreen boughs) to prevent dieback.

    When to Plant: Spring or early fall are ideal times. Planting in fall allows roots to establish before summer heat. Spring planting is suitable once the danger of hard frost has passed.

    Site Selection:

    • Light: Full sun to partial shade. In hotter climates (zones 8-9), afternoon shade is beneficial to prevent potential leaf scorch and maintain richer green color. In cooler zones (6-7), full sun encourages denser growth and better fall/winter color.
    • Soil: Highly adaptable but requires well-drained soil. It cannot tolerate constantly wet or waterlogged conditions, which can lead to root rot. It performs well in average garden loam but tolerates sandy or clay soils if drainage is adequate. Amending heavy clay with compost can improve drainage. Moderately fertile soil is ideal, but it tolerates leaner soils.

    Planting Steps:

    1. Prepare the Area: Clear the planting area of all weeds. Loosen the soil to a depth of 6-8 inches. Amend with compost or other organic matter if the soil is very poor or heavy clay, mixing it in well.
    2. Spacing: For a dense groundcover, space plants approximately 18 to 36 inches apart. Closer spacing will result in faster coverage.
    3. Dig the Hole: Dig a hole slightly wider than the plant's container and just as deep.
    4. Remove Plant: Gently remove the Rubus rolfei from its nursery pot. If root-bound, gently tease apart or score the circling roots.
    5. Position Plant: Place the plant in the hole so that the top of its root ball is level with the surrounding soil surface. Planting too deep can harm the plant.
    6. Backfill: Fill the hole with the amended soil, gently firming it around the root ball to remove air pockets.
    7. Water Thoroughly: Water deeply immediately after planting to settle the soil and hydrate the roots.

    Ongoing Care:

    • Watering: Water regularly (deeply once or twice a week, depending on weather) during the first growing season to encourage strong root development. Once established (typically after the first year), Rubus rolfei is quite drought-tolerant but will look its best with occasional deep watering during extended dry spells, especially in full sun or hot climates. Avoid frequent, shallow watering.
    • Fertilizing: Generally, not required. If growth seems very slow or leaves are pale on poor soil, a light application of a balanced, slow-release fertilizer in early spring can be beneficial. Avoid over-fertilizing.
    • Mulching: Applying a thin layer (1-2 inches) of organic mulch after planting helps conserve moisture and suppress weeds while the plants fill in. Once established, the dense foliage often acts as its own mulch.
    • Pruning: Very low pruning needs. In early spring, trim back any winter-damaged stems or prune edges to control spread if it ventures where unwanted. If a patch becomes overly thick or woody after many years, it can be rejuvenated by mowing very high with a lawnmower set to its highest setting in late winter/early spring before new growth begins, but this is rarely necessary.
    • Weed Control: Keep the area weeded, especially while the plants are young and establishing. Once dense, Rubus rolfei is excellent at suppressing weeds.
    • Pest and Diseases: Remarkably resistant to most common garden pests and diseases.

    By following these guidelines, you can successfully establish Rubus rolfei as a beautiful, textured, and durable groundcover in your landscape for years to come.

    Rubus (roo-bus) Rosaceae Family. A large group of evergreen or deciduous shrubby plants that produce berries. Rubus are widespread throughout the world, but native mostly to the temperate regions of the Northern Hemisphere. Alternate leaves, simple, lobed, or compound, and white or pinkish flowers. The fruit is an aggregate of small drupes, commonly called a berry.

    • Rubus calycinoides 3.5 inch pot Rubus calycinoides 3.5 inch pot

      Rubus

      Rubus calycinoides (3.5 inch pot)

      Rubus hayata-koidzumii is better known (incorrectly) as Rubus calcinoides.(3.5-inch pot)Common names: Creeping Raspberry, Crinkle-leaf Creeper, Taiwanese Creeping Rubus, Creeping Bramble, and Emerald Carpet. Height: 2 Inches Spread: 18-24 Inches...

      $4.74
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    This tough-as-nails groundcover thrives where others falter! Perfect for scorching, dry slopes, or ditches with fluctuating moisture, Rubus hayata-koidzumii (creeping raspberry) will quickly form a dense, resilient carpet.

    Despite often being mislabeled as Rubus calycinoides or Rubus pentalobus, this Taiwanese native offers more than just resilience. Its crinkled, deep green leaves bring captivating texture to lightly shaded areas, and while the mid-summer white flowers may be hidden, they give way to delicious, aggregate fruits ranging in color from yellow to a striking salmon-red.

    As the seasons change, so does the foliage, transforming into subtle rusts and pinks for a touch of autumnal beauty. While aggressive in its growth, reaching 1 to 3 inches tall and spreading vigorously, creeping raspberry is not invasive. It will not scale your trees or choke out neighboring shrubs. A simple pass with an edger keeps it in check.

    Design Tips:

    • Spacing: Give each plant 4 to 6 feet of space to spread.
    • Versatility: Let it cascade over rock walls or spill from containers for a dramatic effect.
    • Combinations: Pair with bulbs or perennials that can emerge through the foliage for an eye-catching display.

    With its adaptability, unique texture, and surprising fruits, creeping raspberry is a rewarding choice for challenging landscape situations.

    Key Features:

    • Growth Habit: Forms a dense mat of creeping stems, typically reaching 1-3 inches (2.5-7.5 cm) tall and spreading 30 cm or more per year.
    • Leaves: Deep green, crinkled, and somewhat rounded with 3-5 lobes. They provide excellent textural interest in the landscape. In fall and winter, the foliage takes on attractive bronze or reddish hues.
    • Flowers: Small, white flowers appear in mid-summer but are often hidden amongst the foliage.
    • Fruit: Produces edible, aggregate fruits (similar to raspberries) that range in color from yellow to orange-red. While not as flavorful as traditional raspberries, they are still considered a tasty treat.

    Cultivation:

    • Hardiness: Generally hardy in USDA zones 7-9.
    • Light: Tolerates a wide range of light conditions, from full sun to partial shade. It even thrives in deep shade.
    • Soil: Adaptable to various soil types but prefers well-drained soil.
    • Moisture: Drought-tolerant once established, but appreciates regular watering during hot, dry periods.
    • Uses: Ideal for groundcover, erosion control on slopes, and filling in difficult areas where other plants struggle. Also suitable for containers and hanging baskets.
    • Maintenance: Low-maintenance. May require occasional edging to control spreading.

    Other Names:

    • Creeping raspberry
    • Crinkle-leaf creeper
    • Taiwanese creeping bramble

    Note: Rubus rolfei was previously known as Rubus calycinoides or Rubus pentalobus. You may still find it labeled under these older names in nurseries.

    The accepted botanical name for the plant commonly known as Creeping Raspberry has changed from Rubus calycinoides to Rubus rolfei. This is due to ongoing research and revisions in plant taxonomy. Here is a breakdown:

    • Why the change? Botanical nomenclature aims to standardize plant names globally and reflect the most accurate understanding of evolutionary relationships. Sometimes, older names are found to be invalid, or a different name has priority according to the International Code of Nomenclature for algae, fungi, and plants (ICN). In this case, Rubus rolfei is the older and therefore correct name.
    • What about the other names? You may still see it labeled with older synonyms like Rubus calycinoides or Rubus pentalobus, especially in nurseries or garden centers. This is because it takes time for name changes to filter through to the horticultural trade.
    • What does this mean for gardeners? Essentially, it is the same plant with a different name. All the characteristics, growing conditions, and care remain the same.

    If you are looking for information or purchasing this plant, it is helpful to be aware of both the old and new names to avoid confusion.

    Rubus, the genus that gives us those delicious berries like raspberries, blackberries, and dewberries! It is a large and complex group, so let us break down the taxonomy:

    • Kingdom: Plantae (Plants)
    • Clade: Tracheophytes (Vascular plants)
    • Clade: Angiosperms (Flowering plants)
    • Clade: Eudicots
    • Order: Rosales (Rose order)
    • Family: Rosaceae (Rose family)
    • Subfamily: Rosoideae
    • Genus: Rubus

    Why Rubus is Complex:

    • Huge Number of Species: Estimates range from 250 to over 1,000 species! This makes it one of the largest genera of flowering plants.
    • Hybridization: Rubus species readily hybridize, creating intermediate forms and making identification difficult.
    • Apomixis: Some species reproduce asexually (apomixis), leading to genetically identical offspring and further complicating classification.
    • Polyploidy: Many Rubus species have multiple sets of chromosomes (polyploidy), adding another layer of complexity.

    Key Characteristics of Rubus:

    • Growth Habit: Mostly shrubs, often with scrambling or trailing stems (canes). Some are erect.
    • Prickles: Most have prickles (sharp outgrowths of the epidermis), similar to roses.
    • Leaves: Usually compound (made up of leaflets), with serrated edges.
    • Flowers: Typically, white or pink, with five petals.
    • Fruit: An aggregate fruit composed of many small drupelets (like a raspberry).

    Subgenera:

    To help organize the vast diversity within Rubus, botanists have divided it into subgenera. Some of the major ones include:

    • Idaeobatus: Raspberries. Fruits separate from the receptacle (the core).
    • Rubus: Blackberries and dewberries. Fruits adhere to the receptacle.
    • Malachobatus: Includes some blackberries and species with unique characteristics.

    Importance:

    • Fruit Production: Rubus species are cultivated worldwide for their delicious and nutritious fruits.
    • Ecological Role: They provide food and habitat for wildlife.
    • Ornamental Value: Some species and cultivars are grown for their attractive flowers and foliage.

    Challenges:

    • Invasive Potential: Some Rubus species can become invasive, spreading aggressively and outcompeting native vegetation.
    • Identification Difficulties: The sheer number of species and hybridization make identification a challenge even for experts.

    Despite its complexity, Rubus is a fascinating and important genus. Its fruits are enjoyed by people around the world, and its ecological role is significant.

    Rubus morphology can be quite variable, but here are the key features that help define this fascinating genus:

    Growth Habit:

    • Canes: Most Rubus species have stems called canes. These are typically biennial (living for two years). In the first year, they grow vegetatively (primocanes), and in the second year, they produce flowers and fruit (floricanes).
    • Habit: Canes can be erect, arching, trailing, or even climbing, depending on the species. Some form dense thickets.

    Prickles:

    • Presence: Most Rubus species have prickles, which are sharp outgrowths of the epidermis (skin). These are different from thorns, which are modified branches. Prickles help the plants scramble over other vegetation.
    • Variation: Prickles can vary in size, shape, and density. Some species have few prickles, while others are densely armed.

    Leaves:

    • Compound Leaves: Most Rubus have compound leaves, meaning each leaf is divided into leaflets. The number of leaflets can vary (3, 5, or 7 are common).
    • Leaflet Shape: Leaflets are usually ovate (egg-shaped) to lanceolate (lance-shaped), with serrated (toothed) edges.
    • Stipules: Small leaf-like structures called stipules are often present at the base of the leaf stalk.

    Flowers:

    • Inflorescence: Flowers are typically arranged in clusters (racemes or panicles) at the ends of the canes.
    • Flower Structure: Flowers usually have five petals, five sepals, and numerous stamens (male reproductive parts) and pistils (female reproductive parts).
    • Color: Petal color is most commonly white or pink but can also be red or purple in some species.

    Fruit:

    • Aggregate Fruit: The Rubus fruit is an aggregate fruit, meaning it develops from a single flower with many ovaries. Each ovary develops into a small drupelet.
    • Drupelets: These are small, fleshy fruits with a single seed inside.
    • Receptacle: The drupelets are clustered on a central receptacle. In raspberries, the fruit separates from the receptacle, while in blackberries, it adheres to the receptacle.
    • Color: Fruit color varies widely, including red, black, purple, and yellow.

    Other Features:

    • Glands: Some species have glands on their stems, leaves, or flower stalks. These glands can secrete substances that may deter herbivores or attract pollinators.
    • Hairs: The presence and type of hairs on stems and leaves can also be important for identification.

    Adaptations:

    • Prickles: Help the plants climb and protect them from herbivores.
    • Aggregate Fruit: Attracts animals that disperse the seeds.
    • Growth Habit: Allows them to colonize a variety of habitats, from open fields to forest edges.

    By understanding these morphological features, you can better appreciate the diversity and adaptations of the Rubus genus. It is a fascinating group of plants with a rich evolutionary history!

    Cultivating Rubus (raspberries, blackberries, and their relatives) can be a rewarding experience, providing you with delicious and nutritious fruit. Here is a general guide, keeping in mind that specific requirements may vary depending on the species and cultivar:

    Choosing a Site:

    • Sunlight: Most Rubus thrive in full sun (at least 6-8 hours of direct sunlight per day). This ensures optimal fruit production and ripening.
    • Soil: Well-drained soil is crucial. Avoid heavy clay soils that can lead to root rot. A slightly acidic soil pH (6.0-6.5) is ideal.
    • Space: Provide ample space, as Rubus can spread. Spacing requirements vary depending on the growth habit (erect, trailing, etc.).

    Planting:

    • Bare-root plants: Soak roots in water for a few hours before planting.
    • Planting depth: Plant at the same depth they were growing in the nursery.
    • Spacing: Varies by species and growth habit. Erect blackberries may need 4-6 feet between plants, while trailing types may need 8-10 feet.
    • Support: Many Rubus benefit from support. Trellises or wires can help keep canes off the ground and improve air circulation.

    Care:

    • Watering: Consistent watering is important, especially during the first year and during dry periods.
    • Fertilizing: Feed with a balanced fertilizer in early spring.
    • Mulching: Apply a layer of organic mulch (straw, wood chips) to help retain moisture, suppress weeds, and keep the fruit clean.
    • Pruning: Pruning is essential for maintaining productivity and health. Methods vary depending on whether the species is summer-bearing (fruits on second-year canes) or fall-bearing (fruits on first-year canes).
    • Pest and Disease Control: Be vigilant for common pests (Japanese beetles, spider mites) and diseases (anthracnose, cane blight).

    Specific Considerations for Types of Rubus:

    • Raspberries:
      • Summer-bearing: Prune out fruited canes after harvest. Thin new canes in spring.
      • Fall-bearing: Can be pruned to the ground in late winter for a single fall crop, or selectively pruned for both summer and fall crops.
    • Blackberries:
      • Erect: Tip prune primocanes in summer to encourage lateral branching. Remove old canes after fruiting.
      • Trailing: Train canes along wires or trellises. Prune out old canes after fruiting.

    Harvesting:

    • Ripeness: Fruits are ready when they are fully colored and come off the plant easily.
    • Frequency: Harvest regularly (every 1-3 days) as fruits ripen.

    Tips:

    • Choose the right cultivars: Select cultivars that are well-suited to your climate and growing conditions.
    • Protect from birds: Netting may be necessary to protect ripening fruit from birds.
    • Enjoy fresh or preserved: Rubus fruits are delicious fresh, but can also be frozen, canned, or made into jams and jellies.

    With proper care and attention, your Rubus plants will provide you with an abundance of tasty berries for years to come!

    Rubus calycinoides, also known as creeping raspberry or Taiwanese creeping bramble, is a low-growing, evergreen groundcover prized for its attractive foliage and ability to thrive in challenging conditions. Here is a guide to cultivating this unique member of the Rubus genus:

    Growing Conditions:

    • Sunlight: While it prefers partial shade, especially in hot climates, Rubus calycinoides can tolerate full sun if provided with adequate moisture.
    • Soil: It thrives in well-drained soil, but is adaptable to various soil types, including loam, sand, and clay.
    • Moisture: Regular watering is essential, especially during the establishment phase. Once established, it becomes relatively drought-tolerant.
    • Hardiness: Hardy in USDA zones 6-9.

    Planting:

    • Spacing: Space plants about 4-6 feet apart to allow for their spreading growth habit.
    • Soil Preparation: Amend the soil with organic matter, such as compost, to improve drainage and fertility.

    Care:

    • Watering: Water regularly, especially during dry periods.
    • Fertilizing: While not a heavy feeder, a light application of a balanced fertilizer in spring can promote healthy growth.
    • Pruning: Prune to control spread or to remove any dead or damaged stems. Pruning can be done at any time of year.
    • Weed Control: Keep the planting area weed-free, especially during the establishment phase. Mulching can help suppress weeds.

    Benefits and Uses:

    • Groundcover: Excellent for covering slopes, banks, or other areas where turfgrass is difficult to establish.
    • Erosion Control: Its dense growth habit helps to stabilize soil and prevent erosion.
    • Weed Suppression: It can effectively outcompete weeds, reducing the need for herbicides.
    • Ornamental Value: Its dark green, crinkled leaves provide year-round interest, and its subtle white flowers add a touch of charm in summer.
    • Containers and Hanging Baskets: It can also be grown in containers or hanging baskets, where its trailing stems create a cascading effect.

    Cultivars:

    • 'Emerald Carpet': A popular cultivar with dark green leaves that develop burgundy tones in winter.
    • 'Golden Quilt': A striking cultivar with golden-yellow foliage.

    Challenges:

    • Spread: While not considered invasive, it can spread aggressively. Regular pruning may be necessary to control its growth.
    • Orange Rust: A fungal disease that can affect young plants. Remove and destroy infected plants to prevent their spread.

    With its adaptability, low maintenance requirements, and attractive foliage, Rubus calycinoides is a versatile groundcover that can add beauty and functionality to various landscape settings.

    Spring:

    • Early Spring (March - April):
      • Clean up: Remove any winter-damaged or dead leaves.
      • Fertilize: Apply a light application of a balanced, slow-release fertilizer if desired.
      • Mulch: Refresh the layer of mulch around the plants.
    • Late Spring (May - June):
      • Monitor for pests and diseases: Watch for signs of orange rust or other fungal diseases.
      • Enjoy the blooms: Although not showy, the small white flowers add a subtle charm.

    Summer:

    • Early Summer (June - July):
      • Water regularly: Provide consistent moisture, especially during hot, dry periods.
      • Weed control: Keep the planting area weed-free.
      • Prune (optional): If needed, prune to control spread or shape the plants.
    • Late Summer (August - September):
      • Monitor for spread: Check if the plants are encroaching on other areas and prune accordingly.

    Fall:

    • Early Fall (September - October):
      • Continue watering: Provide adequate moisture until the first frost.
      • Prune (optional): Fall is another good time to prune if necessary.
    • Late Fall (November):
      • Winterize: Apply a fresh layer of mulch to protect the roots over winter.

    Winter:

    • Winter (December - February):
      • Minimal care: Rubus calycinoides is evergreen and requires little maintenance during winter.
      • Monitor for winter damage: Check for any signs of damage from cold temperatures or heavy snow and prune as needed.

    Additional Notes:

    • Regional variations: Adjust the timing of these tasks based on your local climate and the specific needs of your plants.
    • Observe your plants: Regularly check for any signs of stress or disease. Early detection and intervention can prevent more serious problems.
    • Enjoy the foliage: The main attraction of Rubus calycinoides is its attractive foliage, which provides year-round interest.

    By following this calendar and providing consistent care, you can ensure that your Rubus calycinoides thrives and provides a beautiful, low-maintenance groundcover for your garden.

    Rubus is incredibly diverse! It is a challenge even for experts to keep track of all the species, varieties, and cultivars. Here is a glimpse into this intricate world:

    Species (a very small selection of the many that exist):

    • Rubus idaeus: The species that gives us red raspberries. Native to Europe and Asia.
    • Rubus occidentalis: Black raspberry. Native to North America.
    • Rubus allegheniensis: Allegheny blackberry, a common North American species.
    • Rubus fruticosus: A complex of European blackberries, often used in breeding.
    • Rubus ursinus: California blackberry or Pacific blackberry, native to western North America.
    • Rubus chamaemorus: Cloudberry, a circumpolar species with amber-colored fruits.
    • Rubus deliciosus: Boulder raspberry, a Rocky Mountain native with showy white flowers.

    Groups (informal groupings based on characteristics):

    • Raspberries: Generally, have fruits that separate from the receptacle (the core).
      • Red Raspberries: R. idaeus and its cultivars.
      • Black Raspberries: R. occidentalis and its cultivars.
      • Purple Raspberries: Hybrids between red and black raspberries.
    • Blackberries: Fruits adhere to the receptacle.
      • Erect Blackberries: Upright canes.
      • Trailing Blackberries: Canes that trail along the ground or need support.
      • Semi-erect Blackberries: Intermediate between erect and trailing.
    • Dewberries: Trailing blackberries with small, often prickly fruits.

    Varieties and Cultivars (a tiny sample of the vast number available):

    • Raspberries:
      • 'Heritage': Red raspberry, fall-bearing.
      • 'Boyne': Red raspberry, summer-bearing.
      • 'Bristol': Black raspberry.
      • 'Brandywine': Purple raspberry.
    • Blackberries:
      • 'Triple Crown': Thornless blackberry, erect, large fruit.
      • 'Chester': Thornless blackberry, erect.
      • 'Marion': Trailing blackberry, also known as 'Marionberry'.
      • 'Prime-Ark 45': Thornless blackberry, erect, high yielding.
    • Other:
      • 'Benenden': Ornamental cultivar with variegated leaves.
      • 'Golden Everest': Golden-leaved raspberry.

    Choosing Rubus for Your Garden:

    • Climate: Select species and cultivars that are adapted to your climate.
    • Growth Habit: Consider whether you have space for erect, trailing, or semi-erect types.
    • Fruiting Season: Choose summer-bearing or fall-bearing types, or both, for an extended harvest.
    • Thorns: Many cultivars are thornless, making harvesting easier.
    • Disease Resistance: Look for cultivars with resistance to common Rubus diseases.

    The world of Rubus is vast and exciting! With so many options available, you are sure to find the perfect berry plants for your garden.

    Planting and Spacing:

    • Spacing: For a dense groundcover, space plants about 18-24 inches apart. This will allow them to quickly fill in and create a lush, weed-suppressing carpet.
    • Preparation: Amend the soil with organic matter, such as compost or well-rotted manure, to improve drainage and fertility. This will provide the plants with a nutrient-rich environment to thrive in. Dig the planting area to a depth of about 12 inches and incorporate the organic matter thoroughly.

    Planting:

    • Dig a hole: Dig a hole that is slightly larger than the root ball of the plant.
    • Loosen the roots: Gently loosen the roots of the plant to encourage root growth.
    • Place the plant: Place the plant in the hole, ensuring that the top of the root ball is level with the surrounding soil.
    • Backfill: Backfill the hole with the prepared soil, gently firming it around the roots.
    • Water thoroughly: Water the newly planted plants deeply to settle the soil and help establish the roots.

    Additional Tips:

    • Mulching: Apply a layer of organic mulch, such as wood chips or shredded bark, around the plants to help retain moisture, suppress weeds, and regulate soil temperature.
    • Watering: Water regularly, especially during the first year and in dry periods. Once established, they are relatively drought-tolerant.
    • Fertilizing: While not essential, you can apply a balanced, slow-release fertilizer in early spring to promote healthy growth and flowering.
    • Pruning: Prune as needed to control spread or remove dead or damaged stems. Pruning can be done at any time of year.

    Care for Mass Plantings:

    To ensure the success of your mass planting of Rubus calycinoides, consider the following care tips:

    • Watering: While relatively drought-tolerant once established, consistent watering, especially during dry periods, is essential for optimal growth and flowering. Water deeply and less frequently to encourage deep root development.
    • Mulching: Apply a thick layer of organic mulch, such as wood chips or shredded bark, around the plants to help retain moisture, suppress weeds, and regulate soil temperature. Mulching also helps to protect the roots from extreme temperatures and frost.
    • Pruning: Regular pruning is important to maintain the desired shape and vigor of the plants. Prune out any dead, damaged, or crossing stems. You can also prune to control the spread of the plant.
    • Fertilizing: While not strictly necessary, fertilizing in early spring with a balanced, slow-release fertilizer can promote healthy growth and flowering. However, avoid over-fertilizing, as this can lead to excessive growth and reduced flowering.
    • Pest and Disease Control: Monitor for pests and diseases, such as orange rust, and take appropriate action if necessary. Good cultural practices, such as proper watering and fertilization, can help to prevent many problems.
    • Division: If the plants become overcrowded, divide them in early spring or fall. Carefully dig up the clumps and divide them into smaller sections, replanting them in a new location or pot.

    By following these care tips, you can create a beautiful and low-maintenance groundcover that will thrive for years to come.

    Cultivar Selection:

    • 'Emerald Carpet': Popular choice with dark green foliage and burgundy winter tones.
    • 'Golden Quilt': Offers striking golden-yellow foliage.

    Considerations:

    • Spread: Be mindful of its vigorous growth. It may need to be contained in some situations.
    • Foot Traffic: While it can tolerate light foot traffic, it is not ideal for high-traffic areas.

    With its versatility, durability, and aesthetic appeal, Rubus calycinoides is an excellent choice for mass planting in a variety of landscape settings. Its low-maintenance nature and ability to thrive in challenging conditions make it a valuable addition to any garden.

    Rubus FAQ

    Rubus calycinoides, also known as the creeping raspberry, Yü-shan raspberry, or crinkle-leaf creeper, is a flowering plant in the rose family native to East Asia, from the Himalayas to Myanmar. It is a popular groundcover plant, valued for its attractive foliage, dense growth habit, and tolerance for a wide range of conditions.

    Here are some of the key characteristics of Rubus calycinoides:

    • Evergreen or semi-evergreen foliage: The leaves are small (1-1.5 inches) and deeply lobed, with a crinkled or quilted texture. They are dark green on top and paler or slightly felted underneath. In some climates, the leaves may turn a bronzy-red color in the fall.
    • White flowers: The flowers are small and white, borne in clusters in late spring or early summer.
    • Edible fruits: The fruits are small, orange-red berries that ripen in late summer or early fall. They are technically edible, but they are not very flavorful and are generally not considered worth eating.
    • Creeping growth habit: Rubus calycinoides spreads by stems that root as they touch the ground. It can form a dense mat that is effective at suppressing weeds.
    • Tolerant of a wide range of conditions: This plant is tolerant of sun or partial shade, moist or dry soil, and even poor soil. It is also deer-resistant.

    Rubus calycinoides is a versatile plant that can be used in a variety of ways in the garden. It is a good choice for groundcovers, slopes, edging, and containers. It can also be used as a spiller in mixed borders.

    Here are some additional things to keep in mind about Rubus calycinoides:

    • Although it is not generally considered invasive, it can be somewhat aggressive in some climates. It is important to monitor its growth and prune it back if necessary.
    • The stems have small prickles, so it is best to wear gloves when handling the plant.
    • It is relatively pest- and disease-resistant.

    Overall, Rubus calycinoides is a low-maintenance plant that is easy to care for and provides a variety of benefits to the garden.

    The genus Rubus encompasses a diverse group of plants, including raspberries, blackberries, and other brambles. Their growth habits and characteristics vary, so landscaping ideas will depend on the specific species you are working with. Here are some general ideas for incorporating Rubus into your landscape:

    1. Edible Hedges and Borders:

    • Create a productive and attractive boundary using upright raspberry or blackberry varieties. Train them along fences or trellises to maximize space and create a vertical element.
    • Incorporate thornless varieties near walkways or patios for easy access to the delicious fruits.
    • Mix different cultivars with varying fruiting times to enjoy a continuous harvest throughout the season.

    2. Groundcover Solutions:

    • Utilize creeping raspberries (Rubus rolfei or Rubus hayata-koidzumii) to stabilize slopes, suppress weeds, and add texture to shady areas.
    • Plant them under trees or shrubs where other plants struggle to grow.
    • Combine them with other groundcovers for a tapestry of textures and colors.

    3. Wildlife Habitat:

    • Allow some brambles to grow naturally in a designated area to provide shelter and food for birds and small mammals.
    • Plant native Rubus species to support local wildlife and promote biodiversity.

    4. Ornamental Features:

    • Choose varieties with attractive foliage or flowers. Some raspberries have colorful stems or variegated leaves.
    • Train climbing or trailing raspberries on arbors, pergolas, or walls to create vertical accents.
    • Incorporate them into mixed borders with other flowering perennials and shrubs.

    5. Containers and Small Spaces:

    • Grow compact or dwarf varieties in pots or hanging baskets to enjoy fresh berries on balconies or patios.
    • Choose trailing types for a cascading effect.

    Tips for Success:

    • Understand the specific needs of your chosen Rubus species. Consider sunlight, soil, moisture, and growth habits.
    • Provide adequate support for upright varieties. Use stakes, trellises, or fences.
    • Prune regularly to maintain shape and promote fruit production.
    • Protect berries from birds and other animals with netting or other barriers.

    With their versatility and beauty, Rubus plants can enhance any landscape. Whether you are seeking edible delights, groundcover solutions, or ornamental accents, there is a Rubus to fulfill your gardening desires.

    Planting Rubus calycinoides, also known as creeping raspberry, is quite straightforward and rewarding! Here is a step-by-step guide to help you get started:

    When to Plant:

    The best time to plant Rubus is in the spring, after the last frost in your area. This gives it ample time to establish before cold weather arrives.

    You can also plant in early fall but keep an eye on the weather and ensure the roots have time to settle before freezing temperatures hit.

    Choosing a Location:

    • Rubus thrives in full sun to part shade. Consider the amount of sunlight your chosen area receives throughout the day.
    • It adapts to various soil types but prefers well-drained, loamy soil.
    • If your soil is clay or heavy, amend it with compost or organic matter to improve drainage.

    Planting Process:

    • Prepare the planting site: Clear any weeds or debris from the planting area. Dig a hole twice the size of the root ball of your Rubus plant.
    • Loosen the soil: Break up any compacted soil at the bottom of the hole to encourage root growth.
    • Position the plant: Carefully remove the plant from its container and gently loosen the roots around the root ball. Place the plant in the hole at the same depth it was in the container.
    • Backfill the hole: Fill the hole around the plant with the loosened soil and gently tamp it down to remove air pockets.
    • Water the plant deeply: Give your Rubus a thorough watering to settle the soil around the roots and moisten the ground.

    Aftercare Tips:

    • Water regularly: Water your Rubus regularly, especially during the first year while it establishes. Once established, it is drought-tolerant and only needs occasional watering during dry spells.
    • Mulch: Apply a layer of mulch around the base of the plant to retain moisture, suppress weeds, and regulate soil temperature.
    • Pruning: Rubus calycinoides grows fast and can spread readily. Prune it back occasionally to maintain its desired shape and keep it from becoming invasive. You can prune stems throughout the year, but heavier pruning is best done in late winter or early spring.
    • Fertilizer: You do not typically need to fertilize Rubus calycinoides. However, if your soil is poor, you can give it a light application of balanced fertilizer in the spring.

    Additional Tips:

    • Wear gloves when handling Rubus as its stems have small prickles.
    • Deadhead spent flowers to encourage more blooms.
    • Rubus calycinoides can be propagated by division or stem cuttings.

    By following these simple steps and providing basic care, you can enjoy the beautiful foliage and unique charm of Rubus calycinoides in your garden for years to come!

    Remember, your specific climate and soil conditions may influence the optimal planting and care practices. Consider researching local recommendations for further guidance in your area. Happy planting!

    It is important to remember that Rubus calycinoides is an outdated name, and the plant is now correctly classified as Rubus hayata-koidzumii or Rubus rolfei.

    This creeping raspberry is a fast-growing groundcover. It typically spreads about 30 cm (1 foot) or more per year. This means it can quickly cover a significant area, making it an excellent choice for erosion control, weed suppression, and filling in bare spots.

    However, its vigorous growth also means you will need to keep an eye on it to prevent it from overtaking nearby plants. Here are some tips to manage its spread:

    • Provide ample space: When planting, space them 4 to 6 feet apart to allow for their lateral growth.
    • Edge regularly: Use a spade or edging tool to create a clear boundary and prevent it from encroaching into unwanted areas.
    • Grow in containers: If you are concerned about its spread, consider growing it in containers or raised beds to restrict its growth.
    • Choose a less vigorous cultivar: Some cultivars, like 'Emerald Carpet', are known to be slightly less aggressive than others.

    While its fast growth might seem intimidating, with proper management, Rubus hayata-koidzumii can be a valuable and beautiful addition to your landscape.

    The world of Rubus is vast and diverse, with over 1,350 species known to exist! These delicious and beautiful brambles have been cultivated for centuries, resulting in countless varieties within each species. Here is a glimpse into the amazing variety of Rubus:

    By Fruit Type:

    Raspberries:

    • Red raspberries: These classic berries are sweet and juicy, with popular varieties like 'Malling Jewel,' 'Autumn Bliss,' and 'Summer Gold.'
    • Black raspberries: Known for their intense flavor and darker color, popular varieties include 'Jewel,' 'Black Hawk,' and 'Cumberland.'
    • Yellow raspberries: A unique and sweet option, popular varieties are 'Golden Gourmet,' 'Fallgold,' and 'Amber.'

    Blackberries:

    • European blackberries: Large and juicy, they include varieties like 'Thornless Evergreen,' 'Chester Thornless,' and 'Loch Tay.'
    • North American blackberries: These tend to be smaller and tangier, with popular varieties like 'Triple Crown,' 'Boysenberry,' and 'Darrow.'

    Dewberries:

    • Trailing dewberries: They have long, creeping vines and sweet berries, with varieties like 'Lucretia,' 'Austin Thornless,' and 'Trailblazer.'
    • Evergreen dewberries: Bushy plants with year-round foliage and tasty berries, with varieties like 'Black Diamond' and 'Shawnee.'

    Other Types:

    • Cloudberries: Arctic raspberries with delicate, orange-red berries and a unique flavor.
    • Wineberries: Purple-red berries with a tart and tangy taste.
    • Thimbleberries: Small, red berries with a sweet and earthy flavor.

    By Growth Habit:

    • Upright canes: These varieties grow tall and require support, like most red and black raspberries.
    • Trailing canes: They form long, arching canes that need trellising or can be allowed to sprawl, like dewberries and some blackberries.
    • Groundcovers: These low-growing Rubus species, like the Rubus calycinoides you were interested in, are perfect for edging or suppressing weeds.

    By Seasonality:

    • Summer-bearing: Fruit ripens in mid to late summer.
    • Fall-bearing: Fruit ripens in late summer and continues until frost.
    • Everbearing: Produces two crops of fruit, one in early summer and another in fall.

    This is just a small sampling of the incredible variety within the Rubus genus. When choosing a variety, consider your desired fruit type, growth habit, climate, and personal preferences. With so many amazing options to choose from, you are sure to find the perfect Rubus for your garden!

    Taking care of your Rubus varieties in the garden involves providing basic needs and addressing their specific characteristics. Here is a general guide, but remember to adjust based on your chosen species and local conditions:

    Sunlight and Soil:

    • Most Rubus varieties thrive in full sun to partial shade. However, some blackberry varieties tolerate more shade.
    • Well-drained, fertile soil is ideal. Amend heavy clay soil with compost and organic matter to improve drainage.

    Watering:

    • Water regularly, especially during the first year while your Rubus establishes. Aim for consistent moisture without waterlogging.
    • Once established, most Rubus are drought-tolerant and only need occasional watering during dry spells. Water deeply when the top few inches of soil feel dry.

    Mulching:

    Apply a layer of organic mulch around the base of the plant. This helps retain moisture, suppress weeds, and regulate soil temperature. Choose materials like wood chips, shredded bark, or compost.

    Pruning:

    • Pruning is crucial for maintaining optimal fruit production and shape. The specific technique depends on your Rubus variety:
    • Upright raspberries: Prune in summer after fruiting by removing spent fruiting canes and selecting strong new canes for next year's crop.
    • Trailing raspberries and blackberries: Prune in winter or early spring. Tip prune canes to encourage branching and remove any dead or diseased canes.
    • Everbearing raspberries: Can be pruned lightly after summer fruiting to encourage fall crop, and then more heavily in late winter.

    Fertilizing:

    Generally, Rubus does not require heavy fertilization. A light application of balanced fertilizer in spring can be beneficial if your soil is poor.

    Additional Tips:

    • Wear gloves when handling Rubus as many varieties have thorns.
    • Deadhead spent flowers to encourage more blooms.
    • Control pests and diseases organically if possible. Neem oil, insecticidal soap, and fungicides can be used as needed.
    • Watch for suckers (new shoots) growing from the base of the plant. Remove them promptly to prevent overcrowding and maintain desired shape.

    Remember, these are general guidelines, and specific needs may vary depending on your climate, soil type, and Rubus variety. Consult your local nursery or gardening expert for advice tailored to your specific situation.

    With proper care, your Rubus plants will reward you with delicious berries and beautiful foliage for years to come!

    Rubus plants are generally very attractive to pollinators! They offer a variety of benefits that make them valuable food sources and habitats for many different pollinators, including:

    Rich in Nectar and Pollen:

    Rubus flowers produce abundant nectar and pollen, both of which are vital for pollinators like bees, butterflies, and hummingbirds.

    The nectar is often high in sugar content, making it a particularly enticing meal for bees.

    Some species, like the flowering raspberry (Rubus odoratus), are known for their especially fragrant flowers, further attracting pollinators.

    Open and Accessible Flowers:

    Rubus flowers typically have open and accessible structures, making it easy for pollinators of different sizes and types to reach the nectar and pollen.

    The white or pink color of their blossoms is also attractive to many pollinator species.

    Blooming Season:

    Many Rubus species bloom in mid-spring to early summer, a time when other crops may not be in flower yet. This provides valuable early foraging opportunities for pollinators.

    Some varieties, like everbearing raspberries, even offer extended bloom periods, further increasing their appeal to pollinators.

    Habitat and Nesting Sites:

    The dense foliage and thorny stems of Rubus plants can provide important shelter and nesting sites for pollinators. Bees and butterflies, in particular, can use the foliage and stems for protection from predators and harsh weather.

    Some species, like the dewberry, have trailing canes that offer ideal nesting locations for ground-nesting bees.

    Diversity of Species:

    The large diversity of Rubus species offers a variety of flower shapes, sizes, and bloom times, attracting a wider range of pollinators throughout the season.

    Therefore, planting Rubus in your garden or supporting their presence in natural areas can significantly benefit local pollinator populations.

    Here are some additional points to consider:

    • Certain species, like some blackberries, have less showy flowers and may attract fewer pollinators compared to raspberries.
    • Factors like pesticide use and habitat fragmentation can decrease the abundance and diversity of pollinators visiting Rubus plants.
    • Planting a variety of Rubus species alongside other pollinator-friendly flowers can create a diverse and thriving ecosystem in your garden.

    By choosing to nurture Rubus plants, you can contribute to a healthy and balanced ecosystem by providing vital resources for these vital creatures.

    Rubus plants are susceptible to several common pests and diseases. Here is a rundown of some of the most prevalent ones:

    Pests:

    • Aphids: These sap-sucking insects can stunt plant growth, deform leaves, and transmit viruses. Several species target Rubus, including the raspberry aphid and blackberry aphid.
    • Japanese beetles: These metallic green beetles feed on flower buds and fruit, causing significant damage.
    • Borers: Various borer species can tunnel into canes, damaging tissues and weakening the plant.
    • Spotted wing drosophila: These small fruit flies lay eggs in ripening berries, making them inedible.
    • Birds: Birds can be a nuisance, especially during fruiting season, pecking at, and damaging ripe berries.

    Diseases:

    • Anthracnose: This fungal disease causes brown, sunken spots on leaves and fruit.
    • Cane blight: Another fungal disease, it causes wilting and dieback of canes.
    • Botrytis fruit rot (gray mold): This fungal disease leads to brown, soft rot on ripening fruit.
    • Mosaic virus: This virus causes leaves to become mottled and deformed, reducing plant vigor and fruit production.
    • Leaf curl: This virus also causes leaf deformation and reduces fruit quality.

    Management Strategies:

    • Prevention is key: Prioritize healthy planting practices, good sanitation, and choosing resistant varieties when possible.
    • Organic methods: Use insecticidal soap, neem oil, or diatomaceous earth to control pests early on. For fungal diseases, try copper fungicides or neem oil sprays.
    • Physical barriers: Bird netting can deter birds from feasting on your berries.
    • Proper pruning: Removing diseased or damaged canes and thinning out thick growth helps improve air circulation and reduce disease spread.
    • Monitoring and vigilance: Regularly inspect your Rubus plants for signs of pests and diseases and take action promptly if necessary.
    • Remember: The specific pests and diseases affecting your Rubus plants will depend on your location, climate, and variety. Research common problems in your area and consult your local nursery or gardening expert for tailored advice on their management.

    Do not let these challenges deter you from growing these delicious and rewarding plants. By practicing preventative measures and implementing safe and effective control methods, you can enjoy bountiful harvests of Rubus berries while contributing to a healthy ecosystem for pollinators.

    Rubus can be a wonderful and unexpected addition to floral arrangements, adding texture, color, and unique visual interest. Here are some ways you can incorporate Rubus into your floral creations:

    Foliage:

    • Raspberry Canes: The arching canes of raspberry plants, with their deep green leaves and red prickles, can add a rustic and dramatic element to arrangements. You can use them whole or cut them into shorter sections.
    • Blackberry Foliage: Blackberry leaves are smaller and more delicate than raspberry leaves, but they still offer a beautiful contrast to other flowers. They have a deep green color with slightly serrated edges and can be used to fill out the background of an arrangement.
    • Dewberry Foliage: Dewberry leaves are similar to blackberry leaves but slightly more oval in shape. They can be used in a similar way to blackberry foliage.

    Berries:

    Ripe Raspberries and Blackberries: While delicate and not always long-lasting, ripe raspberries and blackberries can add a pop of color and sweetness to an arrangement. Use them sparingly and choose berries that are just ripe but not overly soft.

    Flowers:

    Flowering Raspberry: Although not as common as the fruiting varieties, the flowering raspberry (Rubus odoratus) has beautiful pink or white flowers with a lovely fragrance. These can be used in arrangements just like any other cut flower.

    Tips for Using Rubus in Floral Arrangements:

    • Choose healthy leaves and berries with no blemishes.
    • Wash the leaves and berries gently before using them.
    • Use sharp pruners to cut the canes and stems.
    • Condition the Rubus foliage by placing it in water for a few hours before using it.
    • Be creative! Experiment with different combinations of Rubus elements and other flowers to create unique and eye-catching arrangements.

    Remember, Rubus can be a bit delicate, so handle it with care. But with a little creativity, you can use this versatile plant to add a touch of the unexpected to your floral designs.

    Rubus rolfei is not native to North America. It is originally from Taiwan, where it grows at higher elevations.

    It is important to be mindful of a plant's origins, especially when considering it for landscaping. While Rubus rolfei is generally well-behaved and not considered invasive in North America, it is always a good idea to:

    • Research its growth habits: Even non-invasive plants can spread aggressively in certain conditions.
    • Choose appropriate planting locations: Avoid areas near natural habitats where it could potentially outcompete native vegetation.
    • Monitor its growth: Keep an eye on it to ensure it stays within its bounds.

    If you are looking for a native groundcover with similar characteristics, consider these options depending on your region:

    • Bunchberry (Cornus canadensis): A low-growing, spreading shrub with attractive white flowers and red berries. Native to North America and parts of Asia.
    • Kinnikinnick (Arctostaphylos uva-ursi): An evergreen groundcover with reddish stems and leathery leaves. Native to North America, Europe, and Asia.
    • Wintergreen (Gaultheria procumbens): A low-growing evergreen with aromatic leaves and red berries. Native to eastern North America.

    Whether Rubus is invasive depends on the specific species and location. It is a complex issue with some species posing significant ecological threats, while others are harmless or even beneficial. Here is a breakdown:

    Invasive Rubus Species:

    • Himalayan blackberry (Rubus armeniacus): This highly invasive species forms dense thickets, displacing native plants and hindering wildlife movement. It is considered a major threat in the Pacific Northwest and California.
    • Wineberry (Rubus phoenicolasius): Another aggressive invader, wineberry forms impenetrable thickets in forests and open areas, reducing habitat diversity and ecological balance. It is widespread in Eastern North America.
    • European raspberry (Rubus idaeus): While less aggressive than the above, this species can still become invasive in some areas, particularly affecting disturbed habitats, and competing with native raspberries.

    Non-invasive Rubus Species:

    • Native North American Rubus species: Most native Rubus species, like blueberries, blackberries, and raspberries, are not invasive and play essential roles in their ecosystems. They provide food and shelter for wildlife and contribute to healthy plant communities.
    • Certain cultivated varieties: Some cultivated Rubus varieties have been bred for specific characteristics and may lack the invasive tendencies of their wild counterparts. However, it is crucial to research the specific variety before planting to ensure it will not become a problem in your area.

    Factors to Consider:

    • Local regulations: Some regions have regulations or lists of invasive plant species to be aware of. Check with your local government or conservation organization for guidance.
    • Habitat suitability: The suitability of the habitat for a specific Rubus species plays a crucial role in its potential invasiveness. Disturbed soils and open areas often provide ideal conditions for invasive species to spread.
    • Planting practices: Responsible planting practices can help mitigate the risk of invasiveness. Avoid planting Rubus species known to be invasive in your area and choose native or non-invasive cultivars when possible.

    Ultimately, be mindful and informed when choosing and planting Rubus species. Research the specific variety, consider its potential invasiveness in your region, and prioritize native or non-invasive options to ensure you are not contributing to environmental harm.

    If you have any doubts or would like further guidance, consult your local nursery, gardening expert, or conservation organization for specific recommendations about safe and responsible Rubus cultivation in your area.

    The best time to divide Rubus plants depends on the specific species and your climate, but generally, there are two optimal windows:

    Early Spring:

    This is ideal for most primocane-fruiting Rubus species, like raspberries and most blackberries. These produce fruit on canes that grow in the first year and die back after fruiting. Dividing in early spring, just as new growth emerges, allows the divided plants to establish before fruiting sets in.

    Late Summer/Early Fall:

    This suits floricane-fruiting Rubus species, like some blackberry varieties. These fruit on canes that grow one year, overwinter, and fruit in the second year before dying back. Dividing in late summer or early fall, after fruiting is finished, gives the divided plants time to establish before winter dormancy.

    Additional factors to consider:

    • Climate: In warmer climates, dividing can be done later in the fall, even into winter when the plants are dormant. However, avoid extremely cold winter periods.
    • Soil moisture: Ensure the soil is moist but not soggy at the time of division to facilitate root growth.
    • Weather: Choose a time with mild weather and avoid dividing during periods of extreme heat or drought.

    Here are some specific examples:

    Raspberries: Divide in early spring, ideally before flowering begins.

    Blackberries:

    • Primocane-fruiting blackberries: Divide in early spring.
    • Floricane-fruiting blackberries: Divide in late summer or early fall after fruiting.
    • Dewberries: Divide in early spring.
    • No matter the timing, the general process of dividing Rubus plants remains the same:
    • Dig around the base of the plant, exposing the root system.
    • Use a sharp tool (like a spade or pruning shears) to carefully separate sections of the plant with good roots and shoots.
    • Replant the divided sections in well-prepared soil, keeping the crowns at the same depth as they were originally.
    • Water thoroughly and provide ongoing care until the plants are established.
    • By considering your specific Rubus species, climate, and other factors, you can choose the optimal time to divide your plants and ensure they thrive in their new locations.

    Remember, if you are unsure about the best time or method for dividing your Rubus plants, consult your local nursery or gardening expert for specific recommendations tailored to your situation.