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Heliopsis

Big Impact, Flowering Groundcover

  • Charming, Miniature Blooms: Enjoy a carpet of tiny, snapdragon-like flowers in shades of purple-blue, lavender, or white (depending on the cultivar) throughout spring and early summer.
  • Incredibly Low-Maintenance: This groundcover is a breeze to care for, requiring minimal watering, fertilizing, or mowing once established. It is perfect for busy gardeners or those with challenging growing conditions.
  • Tough and Durable: Mazus reptans is surprisingly resilient. It can tolerate light foot traffic, making it suitable for pathways, between steppingstones, or as a small-scale lawn substitute.
  • Fast-Spreading Coverage: Quickly fill in bare spots and create a dense, weed-suppressing mat. It spreads readily by creeping stems that root at the nodes.
  • Versatile Groundcover Solution: Ideal for a variety of landscape applications, including rock gardens, borders, edging, containers, and even as a living mulch around shrubs and trees.
  • Adaptable to Sun and Shade: Thrives in full sun to partial shade, giving you flexibility in placement. (Note: Flowering will be most profuse in full sun.)
  • Attracts Pollinators: The small flowers are attractive to bees and other beneficial insects.
  • Deer Resistant: Deer tend not to bother this groundcover.

Site Selection:

  • Light: Full sun (at least 6 hours of direct sunlight per day) to partial shade. Best flowering occurs in full sun. In hotter climates (zones 8-9), some afternoon shade is beneficial.
  • Soil: Prefers moist, well-drained soil rich in organic matter. However, it is adaptable to a range of soil types, including sandy and clay soils, as long as drainage is adequate. Avoid constantly soggy conditions, which can lead to root rot. A slightly acidic to neutral pH (6.0-7.0) is ideal.
  • Hardiness Zones: It is hardy in USDA zones 5 to 8.

Planting:

  • Timing: Spring or early fall is the best time to plant.
  • Spacing: Space plants 6-12 inches apart. Closer spacing will result in faster coverage.
  • Depth: Plant at the same depth as the plant was growing in its container. The crown of the plant (where the stems meet the roots) should be level with the soil surface.
  • Preparation: Dig a hole that is slightly wider and as deep as the root ball.
  • Planting: Gently remove the plant from its container and place it in the hole.
  • Backfill and Water: Fill the hole with soil, gently firming it around the roots. Water thoroughly after planting.

Watering and Care:

  • Watering: Water regularly, especially during the first growing season, to establish a strong root system. Once established, Mazus reptans is relatively drought-tolerant but benefits from occasional watering during dry periods. Aim to keep the soil consistently moist, but not soggy.
  • Mulching: Apply a thin layer of organic mulch (shredded bark, compost) around the plants to help retain moisture, suppress weeds, and regulate soil temperature. Keep the mulch away from the crown of the plant.
  • Fertilizing: Generally, not necessary. If growth is slow or foliage is pale, you can apply a light application of a balanced, slow-release fertilizer in early spring. Avoid over-fertilizing, which can lead to excessive growth and reduced flowering.
  • Weeding: Maintain a weed-free environment, particularly while plants are becoming established.

Pruning and Maintenance:

  • Mowing (Optional): If used as a lawn alternative, Mazus reptans can be mowed occasionally on a high setting to maintain a neat appearance. However, mowing is not required.
  • Shearing (Optional): After flowering, you can shear back the plants lightly to encourage bushier growth and potentially a second flush of blooms. This is not essential.
  • Division (Optional): To propagate or rejuvenate older plants, divide them in spring or early fall. Dig up the clumps and carefully separate them into smaller sections, ensuring each section has roots and shoots. Replant immediately.

Propagation:

  • Division: The easiest and most common method. Divide plants in spring or fall.
  • Stem Cuttings: Take stem cuttings in spring or early summer. Root them in a moist potting mix or perlite.
  • Seeds: Mazus reptans can be grown from seed, but germination can be erratic. Sow seeds indoors in late winter or early spring.

Potential Problems:

  • Slugs and snails: These pests can sometimes be a problem, especially in moist, shady conditions. Use organic slug and snail control methods if necessary.
  • Root Rot If the soil does not have good drainage, and remains too wet, root rot can occur.

Sunny Long-Blooming for Sunny Gardens

Bring a burst of sunshine to your garden with Heliopsis helianthoides, commonly known as False Sunflower. This hardy perennial is celebrated for its cheerful, daisy-like flowers that bloom profusely from summer through fall. Its easy-care nature and long blooming season make it a perfect addition to sunny borders, cottage gardens, and wildflower meadows.

  • Bright, Sunny Blooms: Enjoy a continuous display of vibrant yellow flowers.
  • Long Blooming Season: Provides extended color in the garden from summer to fall.
  • Hardy Perennial: Returns year after year with minimal care.
  • Attracts Pollinators: Draws bees and butterflies to your garden.
  • Low Maintenance: Requires minimal care once established.
  • Versatile Use: Perfect for borders, cottage gardens, and cut flower arrangements.

Planting:

  • Timing: Plant in spring or fall.
  • Location: Choose a sunny location with well-draining soil. Heliopsis thrives in full sun.
  • Soil: Well-drained soil is essential. Amend heavy clay soils with compost or sand.
  • Spacing: Space plants 18-24 inches apart to allow for mature growth.
  • Planting Depth: Plant at the same depth as the nursery container.
  • Initial Watering: Water thoroughly after planting to settle the soil around the roots.

Growing and Care:

  • Watering: Water regularly, especially during dry periods. Once established, Heliopsis is moderately drought-tolerant.
  • Deadheading: Remove spent flowers to encourage continuous blooming.
  • Fertilizing: A light application of balanced fertilizer in early spring can promote healthy growth. Avoid over-fertilizing.
  • Mulching: Apply a thin layer of mulch around the base of the plants to retain moisture and suppress weeds.
  • Division: Divide mature clumps every 3-4 years in spring or fall to rejuvenate the plants.
  • Sunlight: Full sun is essential for optimal blooming.
  • Pest and Diseases: Generally resistant to pests and diseases.

Specifications:

  • Mature Height: 3-5 feet (depending on variety)
  • Mature Spread: 2-3 feet
  • Sun Exposure: Full sun
  • Soil Type: Well-draining
  • Hardiness Zones: 3-9

Heliopsis (hee-lee-op-sis) false sunflower, ox-eye daisy, oxeye sunflower; Asteraceae Family. Heliopsis helianthoides, commonly called ox eye, is an upright, clump-forming, nearly glabrous, sunflower-like, short-lived perennial that is native to eastern and central North America.

Heliopsis produce yellow or orange daisy-like flowers, usually about 3 inches in diameter, on sturdy stems that grow between 3 and 5 feet tall. Leaves are simple and toothed. Flowers bloom from summer to frost.

Heliopsis (Heliopsis helianthoides): The Sunflower's Cheerful Cousin

Bring a touch of sunshine to your garden with Heliopsis helianthoides, commonly known as Oxeye Sunflower or False Sunflower. This vibrant, North American native perennial offers long-lasting, daisy-like blooms and effortless care, making it a favorite for gardeners of all levels. Its bright yellow to orange-yellow flowers, reminiscent of miniature sunflowers, bloom from early summer to fall, attracting butterflies, bees, and other beneficial insects.

  • Genus: Heliopsis
  • Species: helianthoides
  • Family: Asteraceae (Sunflower family)
  • Common Names: Oxeye Sunflower, False Sunflower, Smooth Oxeye
  • Previously known as: Heliopsis scabra
  • Phonetic Spelling: hee-lee-OP-sis hee-lee-an-THOY-dees

 

  • Appearance: Bright yellow to orange-yellow ray flowers surrounding a brownish-yellow central cone. Flowers are typically 2-3 inches in diameter. Plants have an upright, clumping habit, reaching 3-5 feet tall and 1-3 feet wide. Leaves are opposite, ovate (oval-shaped), toothed, and have a slightly rough texture (3-6 inches long).
  • Bloom Time: Long blooming season, typically from June to October (depending on your specific location and cultivar).
  • Native Range: Central and Eastern North America. This makes it an excellent choice for native plant gardens and wildlife habitats.
  • Hardiness: USDA Zones 3-9. Highly adaptable and tolerant of a wide range of conditions.
  • Attracts Pollinators: A valuable source of nectar and pollen for bees, butterflies, and other beneficial insects. Songbirds may also feed on the seeds.
  • Low Maintenance: Drought-tolerant once established. Resistant to deer, dry soil, erosion, heat, and poor soil conditions.
  • Versatile Landscape Uses: Ideal for borders, cottage gardens, meadows, naturalized areas, cutting gardens, and pollinator gardens.

Cultivation Guide:

  • Light: Prefers full sun (at least 6 hours of direct sunlight daily) for best flowering. Can tolerate partial shade, but bloom production may be reduced.
  • Soil: Highly adaptable to various soil types, including clay, loam, and sandy soils. Even thrives in poor, dry soils. Well-drained soil is preferred, but it is surprisingly tolerant.
  • Water: Water regularly during the first year to establish a strong root system. Once established, it is quite drought-tolerant, requiring watering only during extended dry spells.
  • Planting: Plant in spring or fall. Space plants 18-24 inches apart. Adding compost to the planting hole can improve drainage and fertility, especially in heavy clay soils.
  • Care:
    • Fertilizing: Generally, not required. A light application of balanced, slow-release fertilizer in early spring can be beneficial, but avoid over-fertilizing.
    • Deadheading: Remove spent flowers to encourage continued blooming and prevent unwanted self-seeding (if desired).
    • Pruning: Cut back stems to the ground in late fall or early spring to maintain a tidy appearance and encourage fresh growth.
    • Dividing: Divide clumps every 3-4 years in spring or fall to rejuvenate the plants and prevent overcrowding. This is also a great way to propagate new plants.
    • Pest and Diseases: Heliopsis is generally pest and disease-resistant. Aphids can occasionally be a problem; monitor plants and treat with insecticidal soap if necessary. Fungal diseases are uncommon in appropriate well-drained situation, but good air circulation is helpful.

Popular Cultivars:

  • 'Summer Sun': A compact variety (2-3 feet tall) with semi-double, golden-yellow flowers.
  • 'Loraine Sunshine': Distinctive for its variegated foliage (creamy white and green) and golden-yellow flowers.
  • 'Burning Hearts': Features deep red stems that contrast beautifully with the golden-yellow flowers.
  • 'Prairie Sunset': Single, orange-yellow flowers with a darker orange center.

Landscape Design Ideas:

  • Back of the Border: Its height makes it perfect for adding structure and color to the back of a perennial border.
  • Mixed Borders: Combine with other sun-loving perennials like Coneflowers (Echinacea), Black-Eyed Susans (Rudbeckia), Yarrow (Achillea), and Salvia for a vibrant and long-lasting display.
  • Cottage Gardens: Its cheerful appearance fits perfectly within the informal style of cottage gardens.
  • Wildlife Gardens: A must-have for attracting pollinators and supporting local ecosystems.
  • Cutting Garden: The long-lasting blooms make excellent cut flowers.
  • Mass Plantings: Create a stunning visual impact by planting in large groups.
  • Naturalized Areas: Allows it to spread naturally, creating a beautiful, low-maintenance meadow-like effect.
  • Rain gardens: Its deep root system is tolerant of periodic flooding.

Heliopsis helianthoides is a beautiful, resilient, and easy-to-grow perennial that offers a wealth of benefits for both gardeners and wildlife. Its cheerful blooms, long flowering season, and low-maintenance nature make it a valuable addition to any sunny landscape. By providing full sun and well-drained soil, you can enjoy this "false sunflower's" beauty for years to come.

Heliopsis, commonly known as oxeye sunflower or false sunflower, is a genus of flowering plants that brightens up gardens with its cheerful, daisy-like blooms. Here is its taxonomic classification:

  • Kingdom: Plantae (Plants)
  • Clade: Tracheophytes (Vascular plants)
  • Clade: Angiosperms (Flowering plants)
  • Clade: Eudicots
  • Clade: Asterids
  • Order: Asterales
  • Family: Asteraceae (Aster, daisy, or sunflower family)
  • Subfamily: Asteroideae
  • Tribe: Heliantheae
  • Subtribe: Zinniinae
  • Genus: Heliopsis

Meaning of the Name:

The name Heliopsis is derived from the Greek words "helios" (sun) and "opsis" (appearance), referring to the resemblance of its flowers to the sun.

Key Species:

  • Heliopsis helianthoides: This is the most common species, with several varieties and cultivars available. It is native to North America and typically features yellow flowers with a brown or yellow center.

Important Notes:

  • Closely Related to Sunflowers: Heliopsis belongs to the same family as sunflowers (Helianthus) and shares many similarities in appearance.
  • Variety of Forms: While the classic oxeye sunflower has yellow petals, there are cultivars with orange, red, and bi-colored flowers, as well as variations in height and form.

Heliopsis, with its sunny disposition, has a distinctive morphology that makes it a garden favorite. Here is a closer look at its key features:

Growth Habit:

  • Herbaceous perennial: Heliopsis dies back to the ground in winter and re-emerges in spring.
  • Clump-forming: It typically grows in upright clumps, ranging in height from 3 to 6 feet depending on the species and cultivar.
  • Branching: The stems are often branched, creating a bushy appearance.

Leaves:

  • Opposite arrangement: The leaves are arranged in pairs on opposite sides of the stem.
  • Shape: They are typically ovate to lanceolate (oval to lance-shaped) with a toothed or serrated margin.
  • Texture: The leaf surface can be smooth or slightly rough.
  • Color: Generally dark green, providing a nice contrast to the bright flowers.

Flowers:

  • Composite flower heads: Like other members of the Asteraceae family, what appears to be a single flower is actually a composite flower head made up of many small florets.
  • Ray florets: These are the outer "petals" of the flower head and are typically yellow, although some cultivars have orange or red ray florets.
  • Disc florets: These are the smaller, tubular florets in the center of the flower head, usually yellow to brownish in color.
  • Bloom time: Heliopsis blooms profusely from mid-summer to early fall, providing long-lasting color.

Other:

  • Stems: The stems are sturdy but can become top-heavy with flowers, so taller varieties may require staking.
  • Roots: Heliopsis has a fibrous root system.
  • Seeds: The flowers produce small, dry seeds (achenes) that can be collected for propagation.

Distinguishing Features:

  • Compared to Sunflowers: While similar in appearance to sunflowers, Heliopsis has some key differences. The ray florets of Heliopsis are fertile, meaning they produce seeds, unlike the sterile ray florets of true sunflowers. Also, Heliopsis tends to have smaller flower heads and a more branching habit.

These morphological characteristics make Heliopsis a valuable addition to gardens, providing a long season of bright, cheerful blooms that attract pollinators and add a touch of sunshine to any landscape.

Heliopsis, or oxeye sunflower, is a relatively easy-going plant that brings long-lasting sunshine to gardens. Here is how to cultivate it successfully:

Planting:

  • Timing: Spring or fall is ideal. This allows the roots to establish before the heat of summer or the cold of winter.
  • Location: Choose a spot with full sun (at least 6 hours of direct sunlight per day). Heliopsis can tolerate some light shade, but it may become leggy and produce fewer flowers.
  • Soil: Well-drained soil is essential. While it prefers average soil, Heliopsis can tolerate a range of conditions, including clay or sandy soil, as long as it does not become waterlogged.

Care:

  • Watering: Water regularly during the first growing season to help it establish. Once established, Heliopsis is fairly drought-tolerant. Water deeply during prolonged dry spells.
  • Fertilizing: It is not a heavy feeder. A light application of a balanced, slow-release fertilizer in spring is usually sufficient. Avoid over-fertilization, as it can lead to weak, floppy growth.
  • Deadheading: Remove faded flowers regularly to encourage more blooms and prevent self-seeding. You can also shear back the plants by about one-third in mid-summer to promote bushier growth and a later flush of flowers.
  • Staking: Taller varieties may need staking to prevent flopping, especially in windy locations or if they become top-heavy with flowers.
  • Dividing: Every 3-4 years, divide the clumps in spring or fall to maintain plant vigor and prevent overcrowding.

Other Considerations:

  • Pests and Diseases: Heliopsis is generally pest and disease resistant. However, keep an eye out for common garden pests like aphids or powdery mildew.
  • Attracts Pollinators: The bright, daisy-like flowers attract bees, butterflies, and other pollinators to your garden.
  • Deer Resistance: Heliopsis is generally deer-resistant, making it a good choice for areas with deer pressure.

Propagation:

  • Seeds: You can start Heliopsis from seed, either indoors or directly sown in the garden after the last frost.
  • Division: Dividing established clumps is the most common method of propagation.

With its cheerful blooms, long flowering season, and easy care, Heliopsis is a great addition to any sunny garden. Whether you are looking for a border plant, a cut flower, or a pollinator attractor, Heliopsis is sure to brighten up your landscape.

Heliopsis helianthoides Calendar of Care

This calendar offers a general guide for maintaining your Heliopsis helianthoides (oxeye sunflower) throughout the year. Remember to adjust the timing based on your specific climate and the plant's needs.

Early Spring (March - April)

  • Emergence: Heliopsis will start to emerge from dormancy.
  • Cleanup: Clear away any debris or winter mulch from around the plant.
  • Fertilize: Apply a light application of a balanced, slow-release fertilizer.
  • Divide (Optional): If needed, divide established clumps every 3-4 years to maintain vigor.

Late Spring (May - June)

  • Growth: Heliopsis will be actively growing and developing flower buds.
  • Watering: Water regularly, especially during dry periods, to support growth.
  • Staking (Optional): Install stakes for taller varieties to prevent flopping later in the season.

Summer (July - August)

  • Blooming: Enjoy the abundant, cheerful blooms!
  • Deadheading: Regularly remove faded flowers to encourage continuous blooming and prevent self-seeding.
  • Shear Back (Optional): In mid-summer, you can shear back the plants by about one-third to promote bushier growth and a later flush of flowers.
  • Watering: Water deeply during prolonged dry spells.

Fall (September - October)

  • Continued Bloom: Heliopsis may continue to bloom into early fall.
  • Seed Collection (Optional): If you want to save seeds, collect them from dried flower heads.
  • Reduce Watering: Gradually reduce watering as temperatures cool.
  • Leave Standing (Optional): Consider leaving the dried stems and seed heads standing for winter interest and to provide food for birds.

Winter (November - February)

  • Dormancy: Heliopsis will die back to the ground.
  • Cleanup (Optional): If you did not leave the stems standing, cut them back to the ground.
  • Mulch (Optional): Apply a light layer of mulch around the base of the plant for winter protection in colder climates.

Ongoing Care

  • Pest and Disease Monitoring: Watch for any signs of pests or diseases throughout the growing season.
  • Weed Control: Keep the area around the plant weed-free.

Important Notes:

  • Adjust for your climate: This calendar is a general guide. You may need to adjust the timing of tasks based on your specific climate and growing conditions.
  • Observe your plants: Regularly observe your Heliopsis to assess its health and identify any potential issues early on.

By following this care calendar and providing consistent maintenance, your Heliopsis will thrive and provide a vibrant display of sunny blooms in your garden year after year.

The diversity within Heliopsis! Here is a breakdown of its species, groups, varieties, and cultivars:

Species:

  • Heliopsis helianthoides (Oxeye Sunflower): This is the most common and widely cultivated species. It is native to North America and typically has bright yellow flowers with a brown or yellow center.
  • Other Species: While less common in gardens, there are other Heliopsis species, including:
    • Heliopsis longipes
    • Heliopsis parvifolia

Varieties:

  • In botany, a variety is a naturally occurring variation within a species with distinct characteristics that are stable and passed down through seed. Heliopsis helianthoides has a few recognized varieties:
    • Heliopsis helianthoides var. scabra: This variety is often what people refer to when they talk about oxeye sunflower. It has rough, hairy leaves and stems.

Cultivars:

  • This is where the real diversity comes in! Cultivars are plants selected for specific traits (flower color, size, etc.) and are usually propagated vegetatively to maintain those traits. Here are some popular Heliopsis helianthoides cultivars:
    • 'Summer Nights': Golden yellow flowers with mahogany-red centers.
    • 'Loraine Sunshine': Variegated foliage (creamy white and green) with yellow flowers.
    • 'Asahi': Double flowers with a pompom-like appearance.
    • 'Burning Hearts': Reddish-orange flowers with yellow tips.
    • 'Summer Sun': Large, double, golden yellow flowers.

Groups:

  • While not formal taxonomic groups, Heliopsis cultivars can be loosely categorized by:
    • Flower color: Yellow (most common), orange, red, bi-color
    • Flower form: Single, semi-double, double
    • Height: Tall, medium, dwarf
    • Foliage: Variegated or solid green

Important Notes:

  • Availability: Not all species and cultivars are readily available commercially. Specialty nurseries or online retailers might have a wider selection.
  • Hybridization: Some cultivars are complex hybrids, making their exact lineage difficult to trace.

When choosing Heliopsis for your garden, consider the specific characteristics you are looking for, such as flower color, height, and foliage type. With so many options available, you are sure to find the perfect Heliopsis to brighten your landscape!

Heliopsis is a fantastic choice for mass plantings! Its cheerful, daisy-like flowers create a vibrant and long-lasting display in the garden. Here is why it works so well and some tips for success:

Why Heliopsis shines in mass plantings:

  • Abundant blooms: Heliopsis produces a profusion of flowers from mid-summer to early fall, providing a long season of color.
  • Sunny disposition: The bright yellow, orange, or red flowers bring a cheerful and uplifting feel to any landscape.
  • Easy care: Once established, Heliopsis requires minimal maintenance, making it a practical choice for large-scale plantings.
  • Pollinator-friendly: The flowers attract bees, butterflies, and other beneficial insects, supporting a healthy garden ecosystem.
  • Variety of heights and colors: With cultivars ranging from dwarf to tall and offering various flower colors and forms, you can create dynamic and diverse mass plantings.

Tips for Mass Planting Heliopsis:

  • Spacing: Space plants about 18-24 inches apart, depending on the mature size of the cultivar. This allows for good air circulation and prevents overcrowding.
  • Sunlight: Choose a location with full sun (at least 6 hours of direct sunlight per day) for optimal flowering.
  • Soil preparation: Ensure good drainage by amending heavy clay soil with organic matter.
  • Watering: Water regularly during the first growing season to help establish roots. Once established, Heliopsis is fairly drought-tolerant.
  • Deadheading: While not essential in mass plantings, deadheading can prolong the bloom period and prevent self-seeding.
  • Staking: Taller varieties may benefit from staking to prevent flopping, especially in windy locations.

Design Ideas:

  • Meadow effect: Combine Heliopsis with other native wildflowers and grasses for a naturalistic meadow planting.
  • Border brilliance: Use Heliopsis to create a vibrant border along fences, walkways, or garden beds.
  • Color echoes: Repeat the flower colors of Heliopsis in other elements of the landscape, such as garden furniture or containers.
  • Cottage garden charm: Mix Heliopsis with other cottage garden favorites like coneflowers, phlox, and salvias.
  • Pollinator paradise: Create a haven for pollinators by mass planting Heliopsis with other pollinator-friendly perennials.

With its vibrant blooms, long flowering season, and easy care, Heliopsis is a wonderful choice for mass plantings. By carefully considering its needs and combining it with complementary plants, you can create a stunning and low-maintenance landscape that is buzzing with life.

Heliopsis FAQ

Heliopsis, commonly known as oxeye sunflower or false sunflower, is a genus of North American flowering plants in the aster family (Asteraceae). They are clump-forming perennials with daisy-like flowers that bloom in summer and fall. Here are some of the key characteristics of Heliopsis:

  • Habit: Upright, clump-forming perennials
  • Height: 2-5 feet tall
  • Spread: 2-4 feet wide
  • Leaves: Opposite, ovate, toothed leaves, 2-6 inches long
  • Flowers: Daisy-like flowers, 2-3 inches in diameter, with yellow-orange rays surrounding a brownish-yellow center disc
  • Bloom time: Summer and fall.
  • Light: Full sun to part shade
  • Soil: Average, dry to medium, well-drained soil
  • Water: Drought-tolerant, but benefits from regular watering
  • USDA Hardiness Zones: 3-9
  • Propagation: Division, seed
  • Here are some additional characteristics of Heliopsis:
  • Attracts pollinators: The flowers are attractive to butterflies, bees, and other pollinators.
  • Low maintenance: Heliopsis is a low-maintenance plant that is easy to care for.
  • Deer resistant: Deer do not typically browse on Heliopsis.
  • Long bloom time: Heliopsis blooms for several weeks in summer and fall.
  • Versatile: Heliopsis can be used in a variety of garden settings, such as borders, beds, and meadows.

If you are looking for a low-maintenance, easy-to-care-for perennial that will provide long-lasting color in your garden, Heliopsis is a great choice. 

Planting bare root Heliopsis is a straightforward process, but there are some key steps to ensure success. Here is what you need to do:

Before Planting:

  • Timing: Ideally, plant bare root Heliopsis in early spring when the soil is workable but before new growth appears. If you live in a warm climate, fall planting can also be successful.
  • Preparing the planting site: Choose a location with full sun to part shade and well-drained soil. Amend the soil with compost or aged manure to improve drainage and fertility. Dig a hole twice as wide and deep as the root spread of your Heliopsis.
  • Preparing the bare root: If your bare root Heliopsis has been stored, soak it in a bucket of water for several hours before planting to rehydrate the roots.

Planting:

  • Spread the roots: Gently fan out the roots in the hole, ensuring they do not bunch up. You can create a small mound of soil in the center of the hole to help spread the roots evenly.
  • Plant at the correct depth: Position the plant so the crown (where the roots meet the stem) is at or slightly below the surrounding soil level. Avoid planting too deep, as this can hinder growth.
  • Backfill and firm the soil: Fill the hole with soil, gently firming it around the plant to remove air pockets. Avoid creating air pockets around the roots.
  • Water thoroughly: Water the newly planted Heliopsis deeply to settle the soil and hydrate the roots.

After Planting:

  • Mulch: Apply a layer of 2-3 inches of mulch around the base of the plant to retain moisture, suppress weeds, and regulate soil temperature.
  • Water regularly: Water your newly planted Heliopsis regularly, especially during the first few weeks until it becomes established. Be sure to water deeply, allowing the water to penetrate the root zone.
  • Fertilize sparingly: Once established, Heliopsis generally does not require much fertilizer. A light application of balanced fertilizer in early spring may be beneficial.

Additional Tips:

If planting multiple Heliopsis plants, space them according to their mature size, typically 18-24 inches apart.

Do not be alarmed if your bare root Heliopsis does not show signs of growth immediately. It may take some time for it to establish itself and start growing.

Be patient and provide proper care, and your bare root Heliopsis will reward you with beautiful blooms for many years to come.

Here is how to care for your Heliopsis in the garden:

Watering:

  • Young plants: Water regularly, especially during hot and dry spells, until they become established. Aim for consistent moisture without waterlogging.
  • Established plants: They are drought-tolerant once established but appreciate occasional watering during extended dry periods. Water deeply to encourage strong root growth.

Sunlight:

Provide them with at least 4-6 hours of direct sunlight per day for optimal blooming. They can tolerate some light shade, but flowering might be less profuse, and the stems might require support.

Soil:

They thrive in well-draining soil of average quality. Sandy loam or clay loam mixed with compost works well. Avoid overly rich soil, as it can lead to leggy growth.

Fertilizing:

Generally, Heliopsis does not require heavy feeding. A light application of balanced fertilizer in early spring can be beneficial, but avoid overfertilizing, which can encourage weak, floppy growth.

Deadheading:

Regularly deadhead spent blooms by pinching them off at the base of the flower stalk. This encourages continuous blooming throughout the season and keeps the plant looking tidy.

Pruning:

For controlling height and maintaining bushier growth, pinch back the stems by about 1/3 to 1/2 in early summer. If the plant becomes too tall or floppy, you can perform a heavier pruning in late summer or early fall, cutting it back to about half its height.

Dividing:

Every 3-4 years, in early spring or fall, you can divide your Heliopsis to create new plants. Dig up the clump, carefully separate the divisions, and replant them in well-prepared soil.

Winter Care:

Heliopsis is generally winter hardy in USDA zones 3-9. In colder climates, you can apply a light layer of mulch around the base of the plant before the first frost for added winter protection.

Additional Tips:

  • Heliopsis attracts pollinators like butterflies and bees.
  • It is generally deer and pest resistant.
  • Enjoy the long-lasting blooms from summer to fall!

Remember, these are general guidelines, and the specific needs of your Heliopsis may vary depending on your climate and soil conditions. Observe your plant and adjust your care accordingly.

Heliopsis, commonly known as oxeye sunflower or false sunflower, is a magnet for pollinators! They are especially attractive to butterflies, bees, and hummingbirds.

Here are some of the reasons why Heliopsis is so pollinator-friendly:

  • Abundant nectar: The daisy-like flowers of Heliopsis produce copious amounts of nectar, a sugary liquid that is a valuable food source for pollinators.
  • Open and accessible blooms: The flat, open faces of the flowers make it easy for pollinators to reach the nectar.
  • Bright colors: The yellow and orange colors of the flowers are highly visible to pollinators, attracting them from afar.
  • Long bloom time: Heliopsis blooms for many weeks in summer and fall, providing a reliable source of food for pollinators throughout the season.

By planting Heliopsis in your garden, you can help create a pollinator-friendly haven and support the vital role that these creatures play in our ecosystem.

Even low-maintenance beauties like Heliopsis are not entirely immune to pests and diseases. Here are some of the most common ones you might encounter:

Pests:

  • Aphids: These small, soft-bodied insects suck sap from leaves and stems, causing wilting and distorted growth. They can also leave a sticky residue called honeydew, which attracts black sooty mold.
  • Leafminers: The larvae of these tiny flies tunnel between the leaf surfaces, creating unsightly white trails.
  • Thrips: These tiny, slender insects with fringed wings feed on plant sap, causing stunting and discoloration of leaves and flowers.
  • Whiteflies: These tiny, white-winged insects cluster on the undersides of leaves and suck sap, weakening the plant.

Diseases:

  • Leaf spots: Several fungal diseases can cause brown, yellow, or reddish spots to appear on leaves, such as Ascochyta, Cercospora, Phyllosticta, and Septoria.
  • Powdery mildew: This fungal disease manifests as a white, powdery coating on leaves, reducing their ability to photosynthesize.
  • Rust: This fungal disease causes orange or brown pustules to form on leaves, leading to defoliation.

Preventative measures:

  • Plant in well-draining soil and provide good air circulation: This reduces the risk of fungal diseases.
  • Avoid overwatering and fertilizing, which can attract pests and weaken the plant.
  • Encourage beneficial insects like ladybugs and lacewings, which prey on harmful pests.
  • Remove infected leaves and debris promptly to prevent the spread of disease.

Treatment options:

  • For minor infestations of pests, handpicking or spraying with insecticidal soap can be effective.
  • For severe infestations, insecticidal sprays or systemic insecticides may be necessary.
  • For fungal diseases, fungicides may be needed, but cultural controls like improving air circulation and removing infected leaves are crucial.

Remember: It is best to identify the specific problem before taking action. Consult your local nursery or cooperative extension service for diagnosis and recommended treatment options based on your specific situation and local conditions.

Additional tips:

  • Monitor your plants regularly for signs of pests and diseases.
  • Act quickly when problems arise to minimize damage and promote plant health.

By following these tips, you can help your Heliopsis thrive and continue to enjoy its vibrant blooms season after year.

Heliopsis, with its bright yellow daisy-like flowers and long sturdy stems, makes a fantastic addition to floral arrangements. Here is why:

Pros:

Stunning blooms: The cheerful yellow flowers add a touch of sunshine and brighten up any arrangement.

Long vase life: With proper care, Heliopsis can last for 7-10 days in a vase, providing long-lasting enjoyment.

Variety: Different Heliopsis cultivars offer variations in flower size, color intensity, and petal form, providing options to suit your style.

Easy to use: The sturdy stems hold up well in arrangements and are easy to manage when cutting and arranging.

Attracts pollinators: If using the arrangement outdoors, Heliopsis can continue to attract butterflies and bees, adding a touch of life and movement.

Tips for using Heliopsis in arrangements:

Cut stems when flowers are fully open: Early morning is the best time to cut, as the stems are more hydrated.

Use sharp tools: This ensures clean cuts and minimizes damage to the stem.

Condition the stems: Remove lower leaves and place the stems in a vase with warm water for a few hours.

Combine with other flowers: Pair Heliopsis with complementary colors and textures for a visually interesting arrangement. Some good choices include purple coneflowers, blue delphiniums, pink roses, or feathery grasses.

Change the water regularly: This prevents bacteria growth and keeps the flowers fresh.

Things to consider:

Pollen: Some people might be sensitive to pollen, so be mindful of allergies when using Heliopsis in arrangements.

Fragrance: Heliopsis generally has no strong fragrance, but some people might find a faint herbal scent.

Overall, Heliopsis is a versatile and beautiful flower that can add cheer and charm to your floral arrangements. With its long-lasting blooms and ease of use, it is a great choice for both novice and experienced flower enthusiasts.

While Heliopsis, commonly known as oxeye sunflower or false sunflower, can spread through self-seeding, it is generally not considered invasive in most regions. Here is a breakdown of its invasiveness potential:

Reasons why Heliopsis might not be invasive:

  • Limited spread: It primarily spreads by seed, but the seeds typically only germinate within a short distance of the parent plant.
  • Clumping growth: It forms clumps instead of aggressively spreading runners or rhizomes that can quickly overtake other plants.
  • Native range: It is native to North America, so it is adapted to the local ecosystem and less likely to disrupt native plant communities.

However, there are some situations where Heliopsis could be considered invasive:

  • Disturbed areas: In disturbed areas with minimal competition, Heliopsis might spread more readily and potentially crowd out other plants.
  • Outside its native range: In regions where Heliopsis is not native, it could potentially compete with native species, especially if ecological conditions are similar to its native habitat.

Here are some additional points to consider:

  • Different cultivars: Some cultivars of Heliopsis may be more prone to self-seeding than others. If you are concerned about invasiveness, choose cultivars known to be less aggressive spreaders.
  • Local conditions: The invasiveness potential of Heliopsis can vary depending on local factors such as climate, soil type, and existing plant communities. It is always best to research and choose plants that are suitable for your specific area.

Overall, Heliopsis is a beautiful and low-maintenance plant that is generally not considered invasive. However, it is important to be aware of its potential for spread and choose cultivars and planting locations carefully.

There are two main times when you can divide Heliopsis: early spring and early fall. Each season offers its own advantages and disadvantages, so the best time for you will depend on your climate and personal preferences.

Early Spring (Before New Growth Appears):

Advantages:

  • Cooler temperatures are easier on the plant, reducing stress during recovery.
  • Gives the plant the entire growing season to establish itself before winter.
  • Freshly divided clumps may flower later in the summer.

Disadvantages:

  • Can be challenging to dig and divide in wet or frozen soil.
  • Requires consistent watering throughout the spring and summer to ensure establishment.

Early Fall (After Flowering):

Advantages:

  • Soil is usually warm and moist, promoting good root growth.
  • Plants have already stored energy for next year's growth, aiding recovery.
  • Less watering may be needed compared to spring division.

Disadvantages:

  • Plants may not have enough time to fully establish before winter, especially in colder climates.

Established clumps may take longer to divide due to thicker root systems.

Here are some additional factors to consider when choosing the best time to divide Heliopsis:

  • Climate: In colder climates with shorter growing seasons, spring division might be best to ensure the plant has enough time to establish before winter. In warmer climates with longer growing seasons, either spring or fall division can be successful.
  • Plant size and maturity: Younger, smaller plants can tolerate division more easily than larger, older plants.
  • Personal preference: Choose the time of year that best fits your schedule and gardening habits.

No matter when you choose to divide, remember to follow proper techniques to minimize stress on the plant and ensure successful establishment.