Hyssop-leaved Self-heal (Prunella hyssopifolia)

Hyssop-leaved Self-heal

Prunella hyssopifolia

Dainty purple spikes soften rock garden edges. Low-growing mat-forming perennial herb.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Thrives in full sun to partial shade; tolerates intense afternoon sun in Mediterranean climates
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Watering Allow top 2–3 cm of soil to dry completely between waterings; avoid waterlogging
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Temperature Tolerates mild frost down to 5°C; prefers warm, dry summer temperatures
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Characteristics

  • Leaf: Narrow, linear, hyssop-like leaves with slightly serrated margins; gray-green foliage
  • Flower: Dense terminal spikes of small, tubular purple blooms
  • Stem: Trailing, herbaceous stems that root at nodes to spread as ground cover
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Care Guide

Watering

Keep soil evenly moist during active growth

Fertilization

Diluted, low-nitrogen feed once monthly. Avoid over-fertilization to prevent leggy growth

Banana peel tea:Steep 1 chopped banana peel in 4 liters of water for 24 hours; dilute 1:10 before drenching soil; discard solids to prevent odor
Pruning
  • Deadhead spent flower spikes to encourage extended blooming
  • Trim back trailing stems in late autumn to maintain compact form
  • Thin overcrowded growth in early spring to improve airflow
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported adverse effects from ingestion

Humans: No known toxicity to humans; young leaves may be used in small quantities for herbal teas

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental ground cover for rock gardens, borders, and container edges; occasional herbal tea use