Waukegan Creeping Juniper (Juniperus horizontalis 'Waukegan')

Waukegan Creeping Juniper

Juniperus horizontalis 'Waukegan'

Low, spreading evergreen with soft blue foliage, ideal for ground cover. Dwarf coniferous shrub; common name: Waukegan creeping juniper.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun exposure for optimal blue foliage color; tolerates partial shade but may lose vibrant hue
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Watering Drought-tolerant once established; water deeply and infrequently to avoid root rot
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Temperature Extremely cold hardy, tolerates subzero winter temperatures; withstands moderate summer heat without damage
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Characteristics

  • Leaf: Dense, scale-like blue-green foliage that retains color year-round
  • Stem: Prostrate, trailing stems that root at nodes to spread horizontally
  • Cones: Berry-like, round, blue-black when mature (ripen over 2–3 years)
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Care Guide

Watering

Water deeply every 7–10 days during active growth; allow soil to dry completely between waterings

Fertilization

Apply a slow-release, low-nitrogen fertilizer once at the start of growth. Over-fertilization can lead to sparse foliage and reduced cold hardiness

Composted Banana Peel Tea:Steep fully composted banana peels in water for 24 hours; dilute 1:20 before applying as a root drench to support foliage health and stress tolerance
Pruning
  • Trim overgrown stems in early spring to control spread and maintain desired shape
  • Remove dead, brown foliage to improve airflow and overall appearance
  • Avoid shearing dense foliage clusters, as this can create unsightly bare patches
  • Thin out crowded stems to promote even growth across the ground cover
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported cases of toxicity

Humans: Non-toxic to humans; no known adverse effects from ingestion or skin contact

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Garden Uses & Culture

Culture: Symbolizes longevity and resilience in temperate garden traditions

Usage: Ground cover for slopes, rock gardens, and low-maintenance landscapes; aids in soil erosion control