Plant spring cauliflower 2 to 4 weeks before the last frost in the ground or large container. Plant cauliflower in rows with each plant spaced 18 inches apart. Rows should be 30 inches apart. Improve garden soil by adding compost and other rich organic matter. Mulch and give plants 1 to 1.5 inches of water weekly. Cover young plants to protect them from cold weather. When the cauliflower head is about the size of a golf ball, gently fold leaves over the head and secure them in place with twine. Harvest cauliflower heads when they are still compact but large enough to eat, about 6 to 8 inches in diameter. Rotating crops each year will prevent any soil-borne diseases specific to cauliflower from taking hold.
You won’t find ‘Depurple’, a ravishing new purple cauliflower, in stores! Buttery-sweet, lavender-blue florets add color and rich flavor whether served fresh, broiled, sautéed or added to soup. The purple color comes from anthocyanins, the same antioxidants found in red wine, so purple cauliflower is more nutritious too. A sprinkle with vinegar or lemon juice before steaming, roasting, or sautéing will preserve the color.
‘Snow Crown’ is an old All-American winner. Fast growing variety of cauliflower. This indeterminate hybrid may send out additional smaller heads of cauliflower before it is done.