Heirloom / Open Pollinated Chinese Cabbages are biennial but sometimes produce seed in one season. They grow best where the summers are mild. Direct seed Heirloom / Open Pollinated Chinese Cabbage in the spring, after danger of frost (often frost will cause premature bolting). Plant Chinese Cabbage in full sun. In mild winter regions can also be planted in late summer or fall for a late fall harvest. Plant Heirloom / Open Pollinated Chinese Cabbage seeds ¼ – ½” deep, 4-6″ apart, in rows 2-3′ apart. Germination usually occurs in 5-10 days at 75-85°F. Thin plants to 8-12″. Cut whole heads at soil level when they are compact and firm and before seed stalks form. For fall harvests bring in before freezing weather arrives.