Leafy green · reference page

Cauliflower

A demanding cool-season brassica whose head quality is sensitive to heat, setbacks and uneven growth.

Brassica oleracea var. botrytis

Editorial guidance; no independent agronomic review claimed

Direct-sun reference
About 6 hours
Usable root depth
About 40 cm
Editorial cycle
90–155 days to first harvest
Care
Demanding care

Getting started

Sowing and space

Raise or buy healthy seedlings of a variety matched to the local season.

The cycle is an editorial band linked to the method above. Cultivar, temperature, transplant age and the harvest stage can change it.

Allow about 40 cm of usable depth and roughly 55 cm between plants. The crop normally suits a bed or open soil better than a typical domestic container.

Water demand is frequent and even. That is not a fixed timetable: heat, wind, rain, container size and growth stage change the interval.

Planting windows by broad profile

The highlighted months are conservative editorial references, not a current forecast or postcode calendar. Confirm the cultivar, packet, current warning and local advice.

Tropical wet–dry

JanFebMarAprMayJunJulAugSepOctNovDec

Only the mildest part of the dry season is a reasonable editorial window.

Humid subtropical

JanFebMarAprMayJunJulAugSepOctNovDec

Hot and arid

JanFebMarAprMayJunJulAugSepOctNovDec

Warm temperate

JanFebMarAprMayJunJulAugSepOctNovDec

Cool temperate

JanFebMarAprMayJunJulAugSepOctNovDec

Select maturity timing for local frost and spring warming rather than using one national variety.

Practical care

  • Avoid root restriction in a small pot.
  • Keep growth steady from transplant to head formation.

Points to check

  • Heat or interrupted growth can leave small, loose heads.
  • Caterpillar pressure requires early observation.

Provenance and confidence

This rule is editorial guidance without claimed independent agronomic review. Confidence describes evidence coverage, not the chance of a harvest.