Choose a location with full sun and well-drained soil
Prepare the soil by adding compost or aged manure
Aim for soil pH between 6.0 and 7.0
Start seeds indoors 6 to 8 weeks before the last frost or buy seedlings
Harden off seedlings before transplanting outdoors
Plant seedlings 18 to 24 inches apart in rows 24 to 36 inches apart
Water deeply and keep soil consistently moist
Mulch around plants to retain moisture and suppress weeds
Feed with a balanced fertilizer or compost during growth
Keep weeds removed from the growing area
Watch for pests such as cabbage worms, aphids, and flea beetles
Harvest the main head when it is firm and tight before the florets open
Cut the central head with a sharp knife
Leave the plant in place to encourage side shoots for later harvests