Sweet violet

Viola odorata

Low-growing ground cover with intensely fragrant deep-purple flowers in earliest spring. Flowers and leaves edible and medicinal.

Hardiness ratings

Sweet violet 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 1–4 −15 °C to 5 °C Plant tolerates down to this zone

Growing notes

  • One of the first flowers to bloom — a reliable late-winter / early-spring seasonal marker
  • Larval food plant for fritillary butterflies — silver-washed, dark green, and pearl-bordered all depend on Viola species
  • Flowers traditionally crystallised as cake decorations
  • Spreads by runners and seed
  • Always consult a qualified medical or herbal practitioner before using any plant medicinally

Categories

Related plants

Cross-check Sweet violet against your zones

Reference

Sweet violet on Wikipedia