Cauliflower Growing Guide

Brassica oleracea var. botrytis

Crop Rotation Group

Brassicas (Cabbage family) ●

Soil

Rich, deep soil, firm with plenty of well rotted compost dug in.

Position

Full sun.

Frost tolerant

Yes.

Feeding

Mix composted manure or another high-nitrogen compost into the soil before planting. Add a slow release organic fertiliser to the planting hole before transplanting. Spraying leaves with dilute seaweed spray prevents birds eating them.

Spacing

Single Plants: 50cm (1' 7") each way (minimum)
Rows: 45cm (1' 5") with 60cm (1' 11") row gap (minimum)

Sow and Plant

Sow early to mid summer. Sow in seedtrays or pots as they take quite a while to reach transplanting stage and during that time a quick summer crop can be grown and harvested in the garden. Firm soil well when transplanting.
Our Garden Planner can produce a personalized calendar of when to sow, plant and harvest for your area.

Notes

Surround stem with a 10cm mat with a slit cut into it for the stem to prevent cabbage root fly from destroying the roots. Use fine mesh or fleece over the summer to prevent butterflies laying eggs on the underside of leaves - caterpillars can destroy these plants. Protect against birds which can damage the young seedlings and overwintering crops. Bend over a few leaves if required so that the cauliflower head is kept shaded while it is forming.