When can I plant cabbage seedlings in the garden?
Cabbage, broccoli, and cauliflower seedlings can be planted outdoors in early April in southern Iowa, mid-April in central portions of the state, and late April in northern counties. Harden (acclimate) the seedlings in a protected location for a few days prior to planting outdoors. Initially, place the seedlings in a shady location and gradually expose the plants to longer periods of sunlight. Cabbage, broccoli, and cauliflower perform best in fertile, moist, well-drained soils. When planting, space transplants 24 inches apart within the row. Rows should be approximately 24 to 30 inches apart.