Back to Plants library
Cauliflower

Cauliflower

White Cauliflower, Purple Cauliflower, Romanesco

Most demanding brassica — needs consistent water, fertility, and cool temperatures. Blanch white varieties by tying outer leaves over the head when it reaches 2–3" (prevents yellowing). Very sensitive to heat; fall planting often more successful. Needs boron micronutrient; amend soil if hollow stems appear.

Light

Full sun

Water

High water

Temperature

4–22 °C

Frost tolerance

Frost-hardy — tolerates frost

Days to maturity

65–100 days

Plant spacing

45 cm

Companion plants
OnionGarlicLettuce
Watch for pests
Cabbage WormAphidsFlea BeetleHarlequin Bug
Disease risk
Black RotClubrootDowny MildewBoron Deficiency

Want Tomatograph to track cauliflower for you — frost alerts, weekly reviews, and care logging included? Browse the full library or get started free.