Troubleshooting
Cauliflower problems — and how to fix them
Cauliflower (Brassica oleracea var. botrytis) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
No head forms (buttoning)
Stress from cold, drought, or under-feeding when young.
Discoloured curds
Shade with the outer leaves — tie loosely over the head.
Cabbage caterpillars
Net plants or hand-pick eggs.
Clubroot
Rotate brassicas every 4 years.
Bolting in heat
Plant for spring or autumn harvest.
Prevent cauliflower problems before they start
Most cauliflower issues are care-mismatch, not bad luck. Dial in the basics:
Cauliflower problems — FAQ
Why is my cauliflower no head forms (buttoning)?
Stress from cold, drought, or under-feeding when young.
Why is my cauliflower discoloured curds?
Shade with the outer leaves — tie loosely over the head.
Why is my cauliflower cabbage caterpillars?
Net plants or hand-pick eggs.
Why is my cauliflower clubroot?
Rotate brassicas every 4 years.
Why is my cauliflower bolting in heat?
Plant for spring or autumn harvest.