Growth Rate
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- Speed Slow-growing, gradually spreading to form a dense carpet of foliage.
- Mature Size: Typically grows 6-12 inches tall with a spread of 3-6 feet, forming a low, wide mat.
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Colorful leaves
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Flowering
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No |
Ornamental Berries
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Disease resistant
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No |
Cold Tolerant
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Yes |
Heat Tolerant
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No |
Drought Tolerant
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Yes |
Deer Resistant
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Yes |
Edible
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No |
Wildlife Attraction
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- Pollinators: The flowers are generally insignificant, but the small, berry-like cones attract birds and other wildlife.
- Wildlife: The dense foliage provides shelter for small animals and birds. Deer-resistant, making it ideal for areas with wildlife.
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Self-pollinating
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Seasonality
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- Season: Evergreen, year-round interest
- Flowering Season: Spring
USDA Hardiness Zones: 2-6
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Ideal For
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Groundcover: Forms a dense, weed-suppressing mat across wide areas.
Erosion Control: Ideal for slopes, banks, and hillsides thanks to its spreading root system.
Rock Gardens: Naturally suited to alpine-style plantings with rocky, sandy soils.
Dry Gardens / Xeriscaping: Drought-tolerant once established and thrives in poor soil.
Foundation Plantings: Perfect for the front of borders or around buildings where low profile is desired.
Coastal or Wind-Exposed Areas: Highly wind-resistant and tolerant of salt spray in colder regions. |
Leaf Description
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- Color: Fine, needle-like leaves that are blue-green throughout the year.
- Shape: The leaves are short, sharp, and scale-like, densely packed along the branches.
- Size: The foliage forms a dense, carpet-like cover, with each needle measuring about 0.5 inches long.
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Flower Description
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- Color: Inconspicuous yellow-green flowers in spring.
- Bloom Time: Small, unremarkable flowers appear in spring but are typically not the main ornamental feature of the plant.
- Size of Blooms: The flowers are tiny and non-showy, but they give way to small, berry-like cones.
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Planting Instructions
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- Best Time to Plant: Plant in early spring or fall to allow the plant to establish itself before extreme temperatures.
Planting Instructions: - Soil Requirements: Thrives in well-drained, poor to moderately fertile soils. Prefers sandy or rocky soils but adapts to most soil types as long as drainage is good.
- Spacing: Space plants 4-6 feet apart to allow for their spreading growth habit.
- Depth: Plant at the same depth as the root ball, ensuring the crown is level with the soil surface.
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Pruning & Maintenance
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- Pruning Needs: Minimal pruning is required. Light pruning can be done to shape the plant or remove any dead or damaged branches. Prune in late winter or early spring if needed.
- Winter Care: No special winter care is required. It is extremely hardy and can withstand harsh winter conditions in colder zones.
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Water Needs
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- Watering Frequency: Water regularly during the first growing season to establish a strong root system. Once established, it is drought-tolerant and requires minimal watering.
- Drought Tolerance: Highly drought-tolerant once established, making it an excellent choice for dry, rocky, or sandy soils.
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Light Needs
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- Preferred Light: Full sun for optimal growth and foliage color. Can tolerate some light shade but performs best in bright, sunny locations.
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Harvesting
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While not a plant harvested for food or flowers, Juniperus ‘Alpine Carpet’ has ornamental and functional uses in design and crafts. |
Fertilizing
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- When to Fertilize: Apply a slow-release, balanced fertilizer in early spring for best results. Fertilizing is generally not necessary if the plant is growing in suitable soil conditions.
- Type of Fertilizer: Use a general-purpose fertilizer or one formulated for evergreens.
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Additional Care Tips
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- Mulching: Apply mulch around the base to help retain moisture, suppress weeds, and protect the roots, especially during the first growing season.
- Pests: Generally pest-free, though spider mites or juniper scale may occasionally affect it. Treat with insecticidal soap or neem oil if necessary.
- Disease: Ensure good air circulation to prevent fungal diseases such as root rot. Avoid overhead watering to keep foliage dry.
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Pollination
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Juniperus communis 'Alpine Carpet' is wind-pollinated, with male and female cones produced on separate plants. However, this plant's primary ornamental value comes from its foliage and spreading habit rather than its flowers or cones. |
Companion Plants
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Lavandula angustifolia (English Lavender) – Adds height, fragrance, and cool-toned flower spikes.
Salvia nemorosa ‘Caradonna’ – Deep purple flower spikes contrast beautifully with its silvery foliage.
Nepeta (Catmint) – Mounded habit and lavender-blue blooms blend seamlessly with the juniper’s texture. Buxus ‘Green Velvet’ – Offers dark green contrast and formality in borders. Artemisia ‘Silver Mound’ – A great silver-on-silver pairing for dry gardens.
Rosa rugosa (Wild Rose) – Hardy and tolerant of poor soils; its rose hips and flowers bring seasonal color.
Festuca glauca ‘Elijah Blue’ – Intensifies the cool color palette and mirrors the texture.
Panicum virgatum ‘Northwind’ – Vertical interest contrasts with the horizontal sprawl of Alpine Carpet.
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