Field scabious

Knautia arvensis

Native meadow perennial with flat lilac pincushion flower heads on tall slender stems. A reliable bee and butterfly plant for chalk and dry soils.

Hardiness ratings

Field scabious hardiness across the four zone systems
SystemRatingTemperature rangeHow to read it
USDA hardiness zone Zone 3–8 −40 °C to −6.7 °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 3–8 −34 °C to −1 °C Plant tolerates down to this zone
Australian (ANBG) zone Zone 1–5 −15 °C to 10 °C Plant tolerates down to this zone

Growing notes

  • Excellent forage for bees and a recorded host plant for the marbled white butterfly
  • Drought tolerant once established
  • Long flowering season from June through to early autumn

Categories

Related plants

Cross-check Field scabious against your zones

Reference

Field scabious on Wikipedia