Summarize the following:
Your cauliflower plant will continue to grow even after you cut off the head. To maintain your plant, give it 11.5in (2.53.8cm) of water once a week. Along with normal rainfall, this should be plenty to keep your plants healthy. After you harvest the main head of the cauliflower, your plant is not necessarily finished growing. The plant continues to produce small florets after the main head is chopped off. To cut these off, use a sharp knife and make a slice 13in (2.57.6cm) from the top of the florets. Shoots start to grow where you made your main cut, and after 2-4 weeks you may find additional cauliflower to harvest. After your cauliflower grows additional florets, it will stop developing decently sized side shoots. At this point, the plant is finished growing for the season. To harvest the leaves, rip them off with your hands or use gardening shears to cut them at the base of the stem. You can then cook with the leaves or add them to a compost pile. Cauliflower is a biennial plant, so it will grow to size in 2 years, provided that it doesn't die over the winter.

Summary:
Continue giving your plants water every week. Harvest cauliflower florets as they grow. Harvest the remaining leaves after your plant stops producing flowers.