Cauliflower in Australia
NOTE: With most cole crops like broccoli, brussel sprouts, and cabbage some leaves will inevitably turn yellow for a number of reasons. These unhealthy leaves should be pinched back as far as possible to the stalk and discarded or thrown into the compost pile. Insects and pests like sowbugs, snails, and cabbage worms are creatures of opportunity. They can sense weakness in plants and are drawn to them. Good hygiene is important in the garden and goes a long way towards preventing insects and disease.
Follow the same instructions for broccoli. Cauliflower plants grow larger than broccoli and cabbage with a spread of up to 24 inches. Space plants accordingly.
Originally, cauliflower was light green rather than the white we are familiar with today. Farmers used to tie up the large leaves to cover the cauliflower bloom ( the head) to keep it from direct sun so it would turn white. New varieties are “self-blanching” and avoid this process. There has been a return, especially in organic produce stores to the older light green varieties.
Follow growing procedures for broccoli and cabbage using plenty of compost and the diatomaceous earth and liquid seaweed.