Stocks (Gillyflower)

Matthiola incana

Short-lived Mediterranean perennial usually grown as a winter or spring annual, with dense spikes of single or double clove-fragrant flowers in white, pink, mauve, red, or purple.

Hardiness ratings

Stocks (Gillyflower) hardiness across the four zone systems
SystemRatingTemperature rangeHow to read it
USDA hardiness zone Zone 7–10 −17.8 °C to 4.4 °C Zones where it can be grown as an annual — not a frost-tolerance rating
RHS hardiness rating H3 −5 °C to 1 °C Plant needs at least this level of cold tolerance
Canadian plant hardiness zone Zone 8–9 −7 °C and warmer Zones where it can be grown as an annual — not a frost-tolerance rating
Australian (ANBG) zone Zone 2–6 −10 °C to 15 °C Zones where it can be grown as an annual — not a frost-tolerance rating

As a tender annual, Stocks (Gillyflower) doesn't overwinter — the zone range shows where the growing season supports it. See the RHS rating for its actual cold tolerance.

Growing notes

  • Plant as cool-season bedding and as a cut flower — fragrant, long-lasting in the vase, traditional winter and spring cut flower of southern Europe and the Mediterranean
  • Distinct clove fragrance — strongest in the daytime, used historically for traditional pillow sachets
  • Annual cultivars (Brompton, Cinderella, Mathilda series) most widely grown — sow in summer for autumn through to spring bedding in mild climates
  • Resents heat — flowers fade rapidly in hot weather, treat as cool-season only

Categories

Related plants

Cross-check Stocks (Gillyflower) against your zones

Reference

Stocks (Gillyflower) on Wikipedia