Harvest heads when they have achieved full size by cutting below the heads by knife. Head cracking is a problem when heads are over mature. Harvest mature heads and store. Hold them in garden by pruning roots through digging close to the base of the plant or twisting the head at 180 degree angle to disrupt water flow to the head.
Plant seedlings 12-18 inches apart within the rows, and 24 inches apart between the rows. Set plants at the same depth as they were in the container. Water plants with starter fertilizer after transplanting. Cabbage can be directed seeded in midsummer for the fall garden 3 inches apart and ? inch deep then thin to proper spacing.
Additional pests and problems that may affect this plant: