Brassica oleracea var. botrytis

Cauliflower

Common names: Kohlrabi, Cauliflower rose

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Description

Cauliflower is harvested while the dense, unopened flower head is still intact, forming a white head that develops between the leaves. It is more demanding than other cabbage varieties because it requires consistent water and nutrients; otherwise the head remains small or bolts prematurely.

Care instructions

Plant pre‑grown seedlings in nutrient‑rich soil from April, spacing them about one arm’s length apart. Keep the soil consistently moist, as any drought stress will reduce head size. For white varieties, remove a few outer leaves over the head to keep it white and tender. Harvest when the head is firm and closed; waiting too long will cause it to become grainy.

Companion planting

Good neighbours

Lettuce Spinach Pea Red beet Onion

Rather not

Garlic Tomato White cabbage

Diseases & pests

4 relevant

From the knowledge base, automatically linked by affected species.

PestmediumApr–Aug

Phyllotreta

PesthighApr–Sep

Delia radicum

PesthighMay–Sep

Pieris brassicae

PesthighApr–Oct

Arion vulgaris

Varieties

7 varieties

Notes from real gardens

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