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Cauliflower
Brassica oleracea var. botrytis
Harvest cauliflower when heads are about 6-8 inches across. As with broccoli, be sure you cut the head before the buds begin to loosen. Unlike broccoli, there will be no side shoots, so the plant can be removed after the head is cut.
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Climate
Cauliflower is less tolerant of hot weather than some of the other brassicas, so set your plants out as early as possible. Heads that mature in hot weather will have a bitter taste. -
Location
Heads will discolor unless plants are protected from full sun and frost. -
Cultivation
Garden beds should be rich in manure and other organic matter. Supplemental feedings will probably be necessary. The white of the head is preserved by blanching or protection from sunlight. While the head is still small, large leaves are tied together and over the head. These are replaced as the head grows. -
Planting
Sow seeds 1/4 inch deep and 2 inches apart in seed trays or flats. Seedlings take about 6 weeks to appear and are ready for transplanting when around 4-6 inches high. Transplant only in cool weather. -
Watering
Water well but avoid watering directly over the head to prevent damage. Head may need protection during heavy rainfall. -
Fertilizing
Work in plenty of manure. Poultry manure is especially good. Add extra nitrogen at picking times and potash if the soil has leached. Lime will help in the uptake of trace elements. Cauliflower will need more manure than other brassicas. -
Pests and Diseases
See Brassicas. -
Harvesting
Plants mature in 4-5 months. Remove heads when about 8 inches wide by cutting. If left too long, they will discolor and lose their crisp firmness. Leaves can also be used as a vegetable.
