Brassica oleracea var. capitata Early red cabbage. Flexible harvest. 1-1.4kg (2-3lb) heads. Good for small gardens and dense field plantings. Maturesin 72 days. Full Sun. Our earliest red cabbage that performs well spring to fall. Ruby Ball Improveds 1-1.4kg (2-3lb) dense purple heads hold well for a flexible harvest. Its small size means it is perfect for close spacing in the garden and dense plantings in the field. Add a late planting of Ruby Perfection to extend the season into late fall. Approx. 25 Seeds Sow indoors beginning inlate winter and transplant outdoors from 2 weeks after the last frost date to early summer. Overwintering cabbage is sown outdoors during July where winters are mild. Optimal soil temperature: 10-30C (50-85F). Seeds should germinate in 7-10 days. When learning how to grow cabbage, sow 3 or 4 seeds per pot, 5mm () deep, under very bright light. Thin to the strongest plant. Space transplants 45-60cm (18-24) apart in rows 60-90cm (24-36) apart.