Coastal Hedge Nettle (Stachys chamissonis)

Coastal Hedge Nettle

Stachys chamissonis

Fuzzy gray foliage carries soft lavender blooms for pollinators. Clumping herbaceous perennial native to coastal western North America.

Full sun
1–2/week
Beginner
🌱

Plant Needs

☀️
Sunlight Thrives in full sun to partial shade; tolerates coastal salt spray and mild wind exposure
💧
Watering Water deeply when the top 2–3 cm of soil dries out; drought-tolerant once established
🌡️
Temperature Cold-hardy to subzero temperatures; withstands mild coastal frost, avoid prolonged extreme heat without partial shade
🔍

Characteristics

  • Leaf: Oval to lanceolate serrated leaves with fuzzy gray-green texture
  • Flower: Dense upright spikes of tubular pink to lavender flowers
  • Stem: Square, hairy stems characteristic of the mint family
🛠️

Care Guide

Watering

Keep soil evenly moist during active growth; reduce watering for established plants in dry spells

Fertilization

Light diluted fertilization once monthly. Use low-nitrogen feed to support flowering rather than excessive foliage growth

Composted coffee grounds tea:Use fully composted coffee grounds diluted 1:25 with water for root drenching; avoid raw grounds to prevent pH imbalance
Pruning
  • Deadhead spent flower spikes to encourage extended blooming and maintain tidy clump shape
  • Cut back foliage to ground level in late autumn to promote healthy new spring growth
  • Thin overcrowded clumps every 2–3 years to improve airflow and reduce disease risk
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic to cats; no reported toxicity

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

📖

Garden Uses & Culture

Culture: N/A

Usage: Pollinator garden plant for bees and butterflies; coastal erosion control