How to Grow Blue Chip Creeping Juniper

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Blue Chip Creeping Juniper

Juniperus horizontalis 'Blue Chip'

shrub

Blue Chip is a low-growing, prostrate juniper cultivar known for its silvery-blue foliage and dense, spreading habit. It grows only 4-6 inches tall but spreads 3-4 feet wide, making it an excellent groundcover for landscape applications. The fine, needle-like foliage turns slightly purple in cold winter temperatures.

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Example Blue Chip Creeping Juniper timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Blue Chip Creeping Juniper

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Blue Chip Creeping Juniper

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Blue Chip Creeping Juniper dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6+ hours daily; tolerates partial shade but foliage color is less vibrant
💧
Water: Very drought-tolerant once established; requires moderate watering during first growing season to develop deep roots; minimal supplemental water needed afterward except during prolonged dry spells
📏
Spacing: 24-36 inches
📅
Days to maturity: 1-2 years for landscape maturity
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Planting depth: Plant at same depth as root ball; ensure crown is not buried

Soil

Type: Well-draining sandy or rocky loam
pH: 6.0-7.5
Amendments:
Coarse sand Perlite or gravel for drainage improvement Avoid heavy clay or moisture-retentive soils

Growing Zones

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Thrives in zones 3-9, extremely cold-hardy and heat-tolerant

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a

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Growth Stages

1

Establishment

First year

Young plant with compact, tight growth habit; foliage is silvery-blue; slow initial growth as root system develops

Water regularly during first growing season; mulch around base with 2-3 inches of organic material to retain moisture and regulate soil temperature; avoid overwatering

2

Early Growth

Year 2-3

Plant spreads outward along ground; foliage becomes denser; lateral branches extend gradually

Maintain consistent moisture during dry periods; begin light pruning if needed to shape or direct growth; reduce watering frequency as root system matures

3

Mature Spread

Year 3 onward

Plant achieves full 3-4 foot width; dense, uniform mounding appearance; color transitions to purple tones in fall/winter

Minimal pruning needed; remove any dead or damaged branches in spring; drought-tolerant; established plants rarely need supplemental watering

4

Long-term Maintenance

Indefinite (30+ year lifespan)

Fully established groundcover with dense canopy; maintains low profile; foliage color cycles seasonally from blue to purple

Prune only to remove dead wood or maintain desired shape; no fertilizer needed in most soils; excellent winter color interest; extremely low-maintenance

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Plants requiring frequent watering Shade-producing evergreens that compete for light Clay-loving plants Areas with poor drainage

Common Pests

  • Spray with strong water stream; use miticide if severe; improve air circulation; ensure adequate humidity during hot, dry periods

  • Hand-pick bags in fall/winter; apply Bacillus thuringiensis (Bt) in early summer before bags fully form; prune infected branches

  • Spray with horticultural oil in spring or fall; remove heavily infested branches; encourage beneficial predators

  • Prune and destroy infected branches immediately; improve drainage and air circulation; avoid overhead watering; apply fungicide in spring if recurring

Uses

🌿

Groundcover and Erosion Control

Landscape

Blue Chip's dense, spreading growth habit and extremely low stature make it ideal for covering slopes, retaining walls, and sunny areas where foot traffic is minimal. Its ability to establish deep roots helps prevent soil erosion on hillsides. [source]

🌿

Xeriscape and Drought-Resistant Landscaping

Landscape

Once established, Blue Chip requires virtually no supplemental water, making it perfect for water-conservation landscapes, native plant gardens, and arid climates. Its performance in low-water conditions makes it increasingly popular as climate patterns shift. [source]

🎨

Seasonal Color Interest

Craft

The foliage transitions from silvery-blue in spring/summer to deep purple and burgundy tones in fall and winter, providing year-round visual interest and winter landscape color when many plants are dormant. [source]

🦋

Wildlife Habitat and Cover

Wildlife

The dense, low growth provides shelter and nesting cover for small birds, insects, and ground-dwelling wildlife. Its persistent foliage offers year-round protection and food sources for beneficial insects. [source]

🏠

Low-Maintenance Landscaping

Household

Blue Chip requires minimal pruning, no fertilization, and virtually no pest management once established, making it an economical choice for residential and commercial landscapes seeking low-input maintenance. [source]

Harvest Tips

Not harvested; Blue Chip is grown as ornamental groundcover. Dead or damaged foliage can be selectively pruned in early spring. Avoid heavy pruning as recovery is slow.

Fun Facts

  • 🌱 Blue Chip was developed and introduced by Bailey Nurseries and has become one of the most reliable and popular creeping juniper cultivars in North America due to its superior cold hardiness and disease resistance.
  • 🌱 The silvery-blue color is most vibrant in full sun; plants grown in partial shade tend to be more green, demonstrating how environmental conditions affect ornamental foliage color expression.
  • 🌱 Despite their needle-like appearance, junipers are not true conifers but rather modified scales; what appears as fine needles are actually tightly compressed, scale-like leaves that provide water conservation in harsh conditions.

Gardening Terms

New to gardening? Learn about terms used in this guide:

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