Cauliflower is an annual cool-season crop, half-hardy to frost and light freezes. To prevent spreading clubroot and other soil-borne diseases, don't compost any brassica roots. Pull and destroy all infected plants. Plant in rows 2 1/2 to 3 feet apart, with 2 feet between plants. Plant transplants 1" deeper than they were grown in starting pots, and cover with netting to protect from pests. How to Grow Organic Cauliflower from Seed »
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