Heather

Calluna vulgaris

Low evergreen shrub of acid moorland across northern Europe, with masses of small mauve, pink, or white bell flowers in late summer. Aerial parts produce yellow to greenish-yellow textile dye.

Hardiness ratings

Heather hardiness across the four zone systems
SystemRatingTemperature rangeHow to read it
USDA hardiness zone Zone 4–7 −34.4 °C to −12.2 °C Plant tolerates down to this zone
RHS hardiness rating H7 down to −20 °C Plant needs at least this level of cold tolerance
Canadian plant hardiness zone Zone 4–7 −29 °C to −7 °C Plant tolerates down to this zone
Australian (ANBG) zone Zone 1–4 −15 °C to 5 °C Plant tolerates down to this zone

Growing notes

  • Yellow-to-green dye extracted from flowering shoots — the traditional source of the gold-green base colour of Harris Tweed and similar Scottish moorland-dyed cloths
  • A signature plant of British and Northern European acid heathland — the dominant cover of vast moorland areas in Scotland and northern England
  • Demands acidic, well-drained, poor soils — chlorotic and miserable on alkaline soils
  • Important nectar source for bees — heather honey is a distinct premium product

Categories

Related plants

Cross-check Heather against your zones

Reference

Heather on Wikipedia