Brassica

Brussels sprouts are a cool season crop, preferring temperatures under 70º F. Sprouts maturing in hot weather and/or dry conditions are more likely to develop bitterness. Transplant into the garden in July–August (possibly September). If grown from seed, start 4–5 weeks before desired transplant date.

Kale, a member of the cabbage family, is a cool-season vegetable grown for its leaves. Leaves taste sweeter after exposure to cold temperatures. Transplant: February–April (maybe May), September–October (maybe August and November) Direct Seed: March–April (maybe February and May), September–October (maybe…

Kohlrabi is a member of the cabbage family and is grown for its edible, bulb-shaped, stem. Often mistaken for a root plant, the bulb sits just above the soil. The taste and texture are similar to the stems of broccoli but is juicier and crisper.

When to plant: Transplant: February–April, August–September (maybe October) Harvest as soon as they reach maturity (the head is firm and has reached an acceptable size). Leaving them in the garden too long may result in bolting or split heads.

When to plant: February–April, August–September (maybe October) Broccoli matures in 60 to 90 days, depending on the time of year and the variety planted. Harvest broccoli heads as soon as they reach maturity. Ideally the buds on the heads should still be small and firm, not swelling or starting to open,…

Belgian endive can be successfully grown in Santa Clara County as a cool weather green. The plants need to be started in the summer. In late fall, they are harvested, trimmed, and transplanted into damp sand where they are kept cool and dark. Six plants will yield weekly salad greens from December through…