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Juniperus

The junipers include roughly 60 different species of trees and shrubs in the Juniperus genus, within the cypress (Cupressaceae) family of plants.
Juniperus (Juniper) make terrific creeping groundcovers. Creeping juniper or juniperus horizontalis, is a low evergreen groundcover. Full sun lovers, Junipers are not finicky about soil conditions as long they are well-drained. Drought resistant, poor soil tolerant, and deer seldom browse them.

  • Juniperus c Blue Pacific 3.5 inch pot Juniperus c Blue Pacific 3.5 inch pot

    Juniperus c. 'Blue Pacific' (3.5 inch pot)

    Juniperus conferta 'Blue Pacific' (3.5-inch pot)Common Name: Blue Pacific Juniper Height: 6-12 InchesSpread: 4-6 FeetHardiness Zone: 5-9Full SunEvergreen shrubLow-spreading formDeep blue-green needlesUse on slopes for erosion controlUse as a ground cover...

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  • Juniperus h. 'Wiltonii' (3.5 inch pot) Juniperus h. 'Wiltonii' (3.5 inch pot)

    Juniperus h. 'Wiltonii' (3.5 inch pot)

    Juniperus horizontalis 'Wiltonii' (3.5-inch pot)Common Name: Blue Rug Juniper Height: 4-6 Inches Spread: 5-6 Feet Hardiness Zone: 3 - 9 Full Sun Evergreen shrub Thick, dense silvery blue foliage Great in rock gardens or spilling over walls Very...

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Juniperus conferta (Shore Juniper)

Juniperus conferta, commonly known as Shore Juniper, is a low-growing, spreading evergreen conifer that makes an excellent groundcover for sunny, dry areas. Native to the coastal regions of Japan and Sakhalin Island, it is well-adapted to sandy soils and salt spray.

Key Features:

  • Growth Habit: Forms a dense, spreading mat of foliage, typically reaching 1 to 1.5 feet in height, and spreading 6 to 8 feet wide.
  • Foliage: Features attractive, needle-like, blue-green foliage with a prickly texture. The needles are arranged in whorls of three and have a sharp point.
  • Cones: Produces small, fleshy, berry-like cones that mature to a blackish color with a silvery bloom.
  • Hardiness: Thrives in USDA Hardiness Zones 5 to 9.

Cultivation:

  • Sunlight: Prefers full sun but can tolerate some light shade.
  • Soil: Thrives in well-drained, sandy soils. Tolerates poor soils and salt spray.
  • Moisture: Drought-tolerant once established. Avoid overwatering, which can lead to root rot.
  • Maintenance:
    • Requires minimal pruning. Trim lightly to shape as needed.
    • May benefit from occasional fertilization in spring.

Landscape Uses:

  • Groundcover: Excellent for covering large areas, stabilizing slopes, and suppressing weeds.
  • Coastal Gardens: Ideal for seaside gardens due to their salt tolerance.
  • Rock Gardens: Adds texture and color to rock gardens.
  • Foundation Plantings: Can be used as a low-growing foundation planting.
  • Erosion Control: Effective for erosion control on slopes and banks.

Advantages of Shore Juniper:

  • Drought Tolerance: Once established, it requires minimal watering.
  • Salt Tolerance: Withstands salt spray, making it suitable for coastal areas.
  • Pest and Disease Resistance: Generally resistant to pests and diseases.
  • Low Maintenance: Requires minimal pruning and care.
  • Versatile: Adaptable to a variety of soil conditions.

Cultivars:

  • 'Blue Pacific': Features more compact growth and intense blue foliage.
  • 'Emerald Sea': Has a more upright growth habit and emerald green foliage.
  • 'Golden Pacific': Offers golden-yellow foliage that adds a bright touch to the landscape.

With its attractive foliage, adaptability, and low-maintenance nature, Juniperus conferta is a valuable addition to gardens seeking a reliable and versatile groundcover.

 

Juniperus horizontalis (Creeping Juniper)

Juniperus horizontalis, commonly known as Creeping Juniper, is a low-growing, spreading coniferous shrub prized for its ground-hugging habit and attractive foliage. It is a popular choice for landscaping, especially in areas with challenging conditions like slopes, rocky terrain, and poor soils.

Key Features:

  • Growth Habit: Prostrate or creeping growth habit, with branches that spread horizontally along the ground, forming a dense mat. Typically reaches 1 to 2 feet in height but can spread up to 10 feet or more in width.
  • Foliage: Scale-like, awl-shaped leaves that are typically blue-green but can vary in color depending on the cultivar. Some cultivars exhibit silvery-blue, green, or even gold foliage. The foliage may take on a purplish tinge in winter.
  • Cones: Produces small, fleshy, berry-like cones that are blue or blue-black in color.
  • Hardiness: Hardy in USDA Hardiness Zones 3 to 9, making it adaptable to a wide range of climates.

Cultivation:

  • Sunlight: Thrives in full sun but can tolerate partial shade.
  • Soil: Adaptable to a variety of soils, including sandy, rocky, and clay soils. Prefers well-drained conditions.
  • Moisture: Drought-tolerant once established but benefits from regular watering during the first growing season.
  • Maintenance:
    • Requires minimal pruning. Trim to shape as needed.
    • Can be susceptible to certain pests and diseases, such as spider mites, bagworms, and Phomopsis tip blight. Monitor for these issues and take appropriate action if needed.

Landscape Uses:

  • Groundcover: Excellent groundcover for slopes, banks, and rocky areas. Helps to control erosion.
  • Rock Gardens: Adds texture and color to rock gardens.
  • Foundation Plantings: Can be used as a low-growing foundation planting around buildings.
  • Containers: Suitable for growing in containers, especially cascading varieties.
  • Bonsai: Can be trained as a bonsai specimen.

Popular Cultivars:

  • 'Blue Rug': A popular cultivar with silvery-blue foliage.
  • 'Wiltonii' (Blue Star Juniper): A compact cultivar with steel-blue foliage.
  • 'Limeglow': Features bright yellow foliage.
  • 'Mother Lode': Exhibits golden-yellow foliage.

Benefits:

  • Drought-tolerant: Requires minimal watering once established.
  • Erosion Control: Helps to stabilize soil on slopes and banks.
  • Versatile: Adaptable to a variety of soil and light conditions.
  • Low-Maintenance: Requires minimal pruning and care.

With its ground-hugging habit, attractive foliage, and adaptability, Juniperus horizontalis is a valuable addition to landscapes seeking a low-maintenance and versatile groundcover.

Juniperus conferta FAQ

Juniperus conferta, commonly known as Shore Juniper, is a rugged and versatile evergreen shrub that thrives in challenging coastal environments. Native to the sandy shores of Japan and Sakhalin Island, this low-growing conifer forms a dense, ground-hugging carpet of aromatic foliage.

Distinctive Features:

  • Growth Habit: Spreading and decumbent, with branches that hug the ground and extend horizontally, reaching 10-18 inches in height and spreading 6-8 feet wide.
  • Foliage: Dense and aromatic, composed of prickly, awl-shaped needles in shades of blue-green. The needles are arranged in groups of three and can take on a bronze or yellow-green hue in winter.
  • Cones: Produces fleshy, berry-like cones that mature to a bluish-black color with a silvery bloom.
  • Hardiness: Hardy in USDA Hardiness Zones 6a to 9b, tolerating heat, drought, and salt spray.

Cultivation:

  • Sunlight: Thrives in full sun.
  • Soil: Adaptable to a wide range of soils, but prefers well-drained, sandy conditions.
  • Moisture: Drought-tolerant once established, but benefits from regular watering during the first growing season.
  • Maintenance: Requires minimal pruning. Trim to shape as needed.

Landscape Applications:

  • Coastal Gardens: An ideal choice for coastal gardens due to their salt tolerance and ability to withstand harsh conditions.
  • Groundcover: Excellent for stabilizing slopes, banks, and sandy areas, preventing erosion.
  • Rock Gardens: Adds texture and color to rock gardens, complementing other drought-tolerant plants.
  • Foundation Plantings: Can be used as a low-growing foundation planting around buildings.
  • Retaining Walls: Effectively cascades over retaining walls, softening their appearance.

Benefits:

  • Erosion Control: Its spreading habit helps to stabilize soil and prevent erosion.
  • Drought Tolerance: Requires minimal watering once established.
  • Salt Tolerance: Withstands salt spray, making it suitable for coastal areas.
  • Deer Resistance: Generally avoided by deer.
  • Low Maintenance: Requires minimal pruning and care.

Potential Challenges:

  • Susceptibility to Blights: Can be prone to blights, especially in wet conditions.
  • Potential for Pests: May be affected by spider mites, bagworms, and other pests.

With its resilience, aromatic foliage, and ground-hugging habit, Juniperus conferta is a valuable asset in landscapes seeking a low-maintenance and adaptable groundcover, particularly in challenging coastal environments.

Juniperus conferta, commonly known as Shore Juniper or Blue Pacific Juniper, is a stunning evergreen groundcover that adds beauty and resilience to any landscape. Here is a closer look at its characteristics and benefits:

Description:

  • Appearance: A low-growing, spreading shrub with dense, blue-green foliage.
  • Growth Habit: Decumbent, trailing branches that grow horizontally and form a dense mat.
  • Height: Typically, 1-1.5 feet tall.
  • Spread: 6-8 feet wide.
  • Foliage: Small, scale-like leaves that are a vibrant blue-green color.
  • Flowers: Tiny, inconspicuous flowers that appear in spring.
  • Fruit: Small, blue berries that ripen in the fall.

Cultivars:

  • 'Blue Pacific': The most common cultivar, known for its particularly vibrant blue-green foliage.
  • 'Gold Coast': Features golden-tipped foliage for a unique contrast.
  • 'Mother Lode': A more compact variety with a dense, mounding growth habit.

Benefits:

  • Attractive appearance: The dense, blue-green foliage creates a striking visual impact.
  • Low maintenance: Drought tolerant and hardy, requiring minimal care once established.
  • Erosion control: Perfect for covering slopes and preventing soil erosion.
  • Wildlife habitat: Provides shelter and food for birds and small mammals.
  • Salt tolerance: Suitable for coastal areas.

Planting and Care:

  • Planting: Plant in spring or fall when the soil is cool and moist. Dig a hole twice as wide and deep as the root ball. Gently remove the plant from its pot and loosen the roots. Place the plant in the hole, ensuring it is level with the surrounding soil. Backfill with soil, tamping gently to remove air pockets. Water thoroughly.
  • Watering: Water deeply and regularly during the first growing season. Once established, Juniperus conferta is drought tolerant and requires minimal watering.
  • Fertilizing: Fertilize lightly in spring with a balanced, slow-release fertilizer. Avoid over-fertilization, as it can lead to excessive growth and susceptibility to pests.
  • Pruning: Minimal pruning is required. Prune to remove dead branches or shape the plant if needed.

Pests and Diseases:

Juniperus conferta is generally resistant to pests and diseases. However, it can be susceptible to aphids, bagworms, and juniper scale. These can be controlled with insecticidal soap or horticultural oil.

Design Ideas:

  • Groundcover: Plant Juniperus conferta as a groundcover to cover large areas or to prevent erosion on slopes.
  • Edging: Use it as a low-maintenance border along walkways or flower beds.
  • Foundation plantings: Plant it beneath windows or along the base of a house to soften the foundation.
  • Mass plantings: Create a stunning display by planting multiple Juniperus conferta together.

In Conclusion:

Juniperus conferta is a versatile and attractive evergreen that adds beauty and functionality to any landscape. Its low maintenance, drought tolerance, and attractive foliage make it a popular choice for homeowners and landscapers alike.

Here is a comprehensive guide on planting and caring for Juniperus conferta (Shore Juniper):

Planting:

  1. Choose the right time: Plant Juniperus conferta in spring or fall when the soil is cool and moist. Avoid planting during extreme temperatures or when the soil is frozen.
  2. Select a suitable location: Juniperus conferta thrives in full sun or partial shade. It prefers well-drained, sandy soil but can tolerate a range of soil types. Avoid areas with heavy clay or poorly draining soil.
  3. Prepare the planting hole: Dig a hole twice as wide and deep as the root ball of the plant. Loosen the soil at the bottom of the hole to encourage root growth.
  4. Remove the plant from its pot: Gently remove the plant from its pot, being careful not to damage the roots. Loosen the roots slightly to promote drainage.
  5. Place the plant in the hole: Position the plant in the hole so that the top of the root ball is level with the surrounding soil.
  6. Backfill with soil: Backfill the hole with the soil you removed, tamping it gently to eliminate air pockets.
  7. Water thoroughly: Water the plant deeply to settle the soil around the roots.

Care:

  1. Watering: Water deeply and regularly during the first growing season to help the plant establish. Once established, Juniperus conferta is drought tolerant and requires minimal watering. However, water during prolonged dry spells, especially if the plant is in pots or containers.
  2. Fertilizing: Fertilize lightly in spring with a balanced, slow-release fertilizer. Avoid over-fertilization, as it can lead to excessive growth and susceptibility to pests.
  3. Pruning: Minimal pruning is required. Prune to remove dead branches or shape the plant if needed.
  4. Mulching: Mulch around the base of the plant with a 2-inch layer of organic mulch, such as bark chips or pine needles. This helps to conserve moisture, suppress weeds, and protect the roots from extreme temperatures.
  5. Protection from pests: Juniperus conferta is generally resistant to pests, but it can be susceptible to aphids, bagworms, and juniper scale. Inspect the plant regularly and treat any pests as needed.

Additional tips:

  • Protect from extreme temperatures: Juniperus conferta is hardy in zones 4-9, but young plants may need protection from severe winter temperatures. Wrap the base of the plant with burlap or provide some winter protection if necessary.
  • Allow for adequate spacing: Plant Juniperus conferta at least 4-6 feet apart to allow for air circulation and prevent overcrowding.
  • Avoid overwatering: Overwatering can lead to root rot and fungal diseases. Ensure the soil is well-drained and allow the soil to dry slightly between watering.

Common Problems:

  • Brown tips: Brown tips on the foliage can indicate drought stress, lack of nutrients, or winter injury. Water the plant deeply and fertilize if necessary. Prune out affected branches if necessary.
  • Scale insects: These can be controlled with insecticidal soap or horticultural oil.
  • Fungal diseases: Treat fungal diseases such as Cercospora needle blight with fungicide.

By following these planting and care tips, you can ensure that your Juniperus conferta thrives and adds beauty to your landscape for years to come.

Here are some creative design ideas for incorporating Juniperus conferta (Shore Juniper) into your landscape:

1. Groundcover:

  • Slopes: Plant Juniperus conferta on slopes to prevent erosion and add a lush, evergreen blanket.
  • Mass plantings: Create a dramatic effect by planting multiple Juniperus conferta together in large beds.
  • Foundation plantings: Use Juniperus conferta as a groundcover to soften the foundation of a house or building.

2. Edging:

  • Walkways: Line walkways with Juniperus conferta to create a defined border and add a touch of greenery.
  • Flower beds: Use Juniperus conferta as a low-maintenance edging for flower beds, adding a contrasting texture and color.

3. Rock gardens:

  • Accentuate rocks: Plant Juniperus conferta between rocks and boulders to create a natural, cascading effect.
  • Fill empty spaces: Use Juniperus conferta to fill in gaps between larger rocks and create a more cohesive design.

4. Containers:

  • Plant in pots: Juniperus conferta can be grown in pots or containers, adding a touch of greenery to patios, balconies, or rooftops.
  • Create a focal point: Plant a single, well-shaped Juniperus conferta in a decorative pot to create a focal point on a patio or deck.

5. Bonsai:

  • Train as a bonsai: Juniperus conferta can be trained as a bonsai, adding a unique and artistic element to your landscape.

Additional design tips:

  • Combine with other plants: Pair Juniperus conferta with other plants that have complementary colors and textures, such as perennials, grasses, or flowering shrubs.
  • Consider the overall design: Think about the overall style and theme of your landscape when incorporating Juniperus conferta. Choose cultivars and planting locations that complement the existing design elements.
  • Maintain proper spacing: Plant Juniperus conferta at least 4-6 feet apart to allow for air circulation and prevent overcrowding.
  • Prune for shape: If desired, prune Juniperus conferta to maintain a specific shape or size.

With its versatility and adaptability, Juniperus conferta can be used in a variety of landscape designs to create stunning visual effects. Experiment with different planting combinations and locations to find the perfect way to incorporate this beautiful evergreen into your garden.

Juniperus conferta 'Blue Pacific' is a fantastic evergreen groundcover known for its beautiful blue foliage and tough-as-nails nature. Here is a breakdown of why it is so popular:

Key Features:

  • Stunning Blue Foliage: 'Blue Pacific' boasts striking silvery-blue needles that create a cool, calming effect in the landscape. The color remains vibrant year-round, adding winter interest.
  • Low-Growing and Spreading: It hugs the ground, typically reaching only 1 foot (30 cm) tall but spreading 6 to 8 feet (1.8-2.4 m) wide. This makes it ideal for covering large areas or cascading over walls.
  • Dense Growth Habit: It forms a dense mat of foliage that effectively suppresses weeds and prevents erosion.
  • Aromatic Foliage: The needles release a pleasant, fresh scent when crushed.
  • Tough and Adaptable: 'Blue Pacific' is highly adaptable and tolerates a wide range of conditions, including drought, salt spray, and poor soils. It is also deer-resistant!

Growing Conditions:

  • Sunlight: Thrives in full sun but can tolerate some light shade.
  • Soil: Prefers well-drained soil but tolerates sandy or rocky conditions.
  • Moisture: Drought-tolerant once established, but benefits from occasional watering during hot, dry periods.
  • Hardiness: Hardy in USDA zones 6 to 9.

Uses in the Landscape:

  • Groundcover: Excellent for covering large areas, suppressing weeds, and preventing erosion on slopes or banks.
  • Rock Gardens: Its low-growing habit and blue foliage complement rocks and other alpine plants.
  • Coastal Gardens: Tolerates salt spray, making it a good choice for seaside gardens.
  • Foundation Plantings: Can be used to soften the edges of buildings or walkways.
  • Containers: Suitable for containers, especially when allowed to spill over the edges.

Care Tips:

  • Planting: Space plants about 3 to 4 feet apart to allow for spreading.
  • Watering: Water regularly during the first year to establish a deep root system.
  • Pruning: Minimal pruning is needed. Trim to shape as desired in late winter or early spring.
  • Pests and Diseases: Generally, pest and disease-resistant but can be susceptible to juniper blight and spider mites.

If you are looking for a low-maintenance, attractive, and tough groundcover, Juniperus conferta 'Blue Pacific' is an excellent choice! It is a versatile plant that can add beauty and functionality to various landscape settings.

Juniperus horizontalis FAQ

The Creeping Juniper (Juniperus horizontalis) is a North American native, renowned for its low-growing, spreading habit. As its common name suggests, it excels as a groundcover, forming a dense mat of foliage that can reach up to 10 feet wide while staying under 1.5 feet tall. This makes it ideal for a variety of landscape applications, from stabilizing slopes and covering bare ground to adding texture to rock gardens and foundation plantings.

Key Features:

  • Foliage: Scale-like, green to blue-green, often with purple tones in winter.
  • Growth Habit: Procumbent, spreading, forming a dense mat.
  • Hardiness: USDA Zones 3a to 9b.
  • Sun: Full sun (6 or more hours of direct sunlight).
  • Soil: Adaptable, prefers well-drained, sandy soil.
  • Moisture: Drought tolerant, prefers dryish conditions.
  • Maintenance: Low.

Landscape Uses:

  • Groundcover: Effective for erosion control on slopes.
  • Rock Gardens: Adds texture and interest.
  • Foundation Plantings: Softens hard edges.
  • Retaining Walls: Cascades over walls for a natural look.
  • Hot, Dry Areas: Thrives in challenging conditions.

Advantages:

  • Drought tolerant: Ideal for low-water landscapes.
  • Deer resistant: Unpalatable to deer.
  • Salt tolerant: Suitable for coastal areas.
  • Urban tolerant: Withstands air pollution.
  • Versatile: Adapts to a wide range of soil conditions.

Points to Note:

  • Susceptible to certain pests and diseases: Monitor for mites, webworms, and fungal diseases.
  • Can be a host for cedar-apple rust: Avoid planting near apple trees.
  • Fruit: Produces small, blue, berry-like cones, though these may be absent on cultivars.

Cultivars:

Numerous cultivars are available, offering variations in color, texture, and growth habit. Some popular choices include:

  • 'Bar Harbor' - blue-green foliage
  • 'Blue Chip' - silvery-blue foliage
  • 'Plumosa' - feathery, green foliage
  • 'Wiltonii' (Blue Rug Juniper) - intense blue foliage

In Conclusion:

Creeping Juniper is a valuable landscape plant, particularly for challenging sites. Its hardiness, adaptability, and low maintenance make it a popular choice for gardeners seeking a reliable and attractive groundcover.

Creeping Juniper (Juniperus horizontalis)

This North American native is a low-growing evergreen shrub that spreads horizontally, forming a dense mat of foliage. It is a popular choice for landscaping because it is adaptable, low-maintenance, and thrives in challenging conditions.

Characteristics:

  • Growth Habit: Spreading, procumbent, reaching up to 10 feet wide and 1.5 feet tall.
  • Foliage: Scale-like, typically green to blue-green, often with purple hues in winter.
  • Hardiness: USDA Zones 3a to 9b.
  • Sun: Full sun (6 or more hours of direct sunlight).
  • Soil: Adaptable, prefers well-drained sandy soil.
  • Moisture: Drought tolerant, thrives in dryish conditions.

Landscape Uses:

  • Groundcover: Excellent for erosion control on slopes.
  • Rock Gardens: Adds texture and visual interest.
  • Foundation Plantings: Softens hard edges around buildings.
  • Retaining Walls: Cascades beautifully over walls.
  • Hot, Dry Areas: Perfect for challenging environments.

Advantages:

  • Drought Tolerant: Ideal for water-wise gardens.
  • Deer Resistant: Generally unpalatable to deer.
  • Salt Tolerant: Suitable for coastal regions.
  • Urban Tolerant: Withstands air pollution.
  • Versatile: Adapts to various soil conditions.

Things to Consider:

  • Susceptible to pests and diseases: Keep an eye out for mites, webworms, and fungal diseases.
  • Can host cedar-apple rust: Avoid planting near apple trees.
  • Fruit: Produces small, blue, berry-like cones, although these might be absent on some cultivars.

Creeping Juniper offers a variety of cultivars, each with its own unique charm and characteristics. Here are some popular options to consider:

  • 'Blue Chip': Known for its striking silvery-blue foliage and compact growth habit.
  • 'Wiltonii' (Blue Rug Juniper): Features vibrant blue foliage and a spreading habit, making it ideal for groundcover.
  • 'Plumosa': Characterized by its feathery, green foliage, adding a soft touch to landscapes.
  • 'Bar Harbor': Offers a blend of blue-green and purple foliage for a unique look.

Consider the following factors when choosing a cultivar:

  • Color: Select a color that complements your existing landscape.
  • Size: Choose a cultivar that will fit the available space.
  • Hardiness: Ensure the cultivar is hardy for your climate zone.

Planting and caring for Creeping Juniper is relatively easy:

  • Planting: Plant in spring or fall when the soil is cool. Dig a hole twice as wide and deep as the root ball. Gently remove the plant from its pot and loosen the roots. Place the plant in the hole, ensuring it is level with the surrounding soil. Backfill with soil, tamping gently to remove air pockets. Water thoroughly.
  • Watering: Water deeply and regularly during the first growing season. Once established, Creeping Juniper is drought tolerant and requires minimal watering.
  • Fertilizing: Fertilize lightly in spring with a balanced, slow-release fertilizer. Avoid over-fertilization, as it can lead to excessive growth and susceptibility to pests.
  • Pruning: Minimal pruning is required. Prune to remove dead branches or shape the plant if needed.

Creeping Juniper is generally a low-maintenance plant, but it can be susceptible to some pests and diseases:

  • Pests: Aphids, bagworms, juniper scale, and mites can be problematic. Treat with insecticidal soap or horticultural oil.
  • Diseases: Fungal diseases such as Cercospora needle blight and Phomopsis can infect the foliage. Prune out infected branches and treat with fungicide if necessary.

Here are some creative ways to use Creeping Juniper in your landscape:

  • Groundcover: Plant Creeping Juniper on slopes, under trees, or in rock gardens to control erosion and add color.
  • Edging: Use it as a low-maintenance border along walkways or flower beds.
  • Foundation plantings: Plant it beneath windows or along the base of a house to soften the foundation.
  • Mass plantings: Create a stunning display by planting multiple Creeping Junipers together.

Juniperus horizontalis 'Wiltonii' better known as 'Blue Rug Juniper'! It is an incredibly popular groundcover juniper prized for its vibrant blue foliage and low-growing habit.

Here is a rundown of what makes 'Wiltonii' so special:

Distinctive Features:

  • Intense Blue Foliage: 'Wiltonii' features dense, silvery-blue needles that create a carpet of color. The foliage takes on a slightly purplish hue in winter, adding another dimension of interest.
  • Ground-Hugging Growth: It grows exceptionally low to the ground, typically reaching only 4-6 inches (10-15 cm) in height. However, it spreads vigorously, reaching 6-8 feet (1.8-2.4 m) in width, making it a fantastic groundcover.
  • Trailing Branches: The branches spread horizontally and trail along the ground, creating a beautiful cascading effect over walls or slopes.
  • Easy Care: 'Wiltonii' is known for its low-maintenance nature and tolerance of various conditions.

Growing Conditions:

  • Sunlight: Thrives in full sun but can tolerate some light shade.
  • Soil: Adaptable to a wide range of soils, including sandy, rocky, and clay soils, but prefers well-drained conditions.
  • Moisture: Drought-tolerant once established, but benefits from occasional watering during hot, dry periods.
  • Hardiness: Hardy in USDA zones 3 to 9, making it suitable for various climates.

Uses in the Landscape:

  • Groundcover: Excellent for suppressing weeds, preventing erosion, and adding color to large areas.
  • Rock Gardens: Its low-growing habit and blue foliage blend perfectly with rocks and other alpine plants.
  • Slopes and Banks: Its trailing branches cascade beautifully over slopes and banks.
  • Foundation Plantings: Softens the edges of buildings and walkways.
  • Containers: Can be used in containers, allowing the foliage to spill over the edges.

Care Tips:

  • Planting: Space plants about 3 to 4 feet apart to allow for spreading.
  • Watering: Water regularly during the first year to help establish a deep root system.
  • Pruning: Minimal pruning is needed. Trim to shape as desired in late winter or early spring.
  • Pests and Diseases: Generally, pest and disease-resistant but can be susceptible to juniper blight and spider mites.

If you are looking for a reliable, low-maintenance, and visually stunning groundcover, Juniperus horizontalis 'Wiltonii' (Blue Rug Juniper) is a fantastic choice! Its vibrant blue foliage and spreading habit make it a popular and versatile plant for various landscape applications.