Brassica rapa var. ‘pekinensis’ (hybrid)
Also called napa cabbage, ‘One Kilo Slow Bolt’ cabbage has a soft texture between that of lettuce and regular cabbage and tight heads with a cream-yellow interior. Grows with ease in the fall and can be sown in the spring as long as they are protected against temperatures of 50°F or below which may cause plants to bolt. Grows best between 60°-65°F. Plants grow up to 9″ tall and 20″ wide including lateral leaves, while the head grow to about 11″ tall and 7″ wide. Botanical Interests’® One Kilo Slow Bolt Napa Cabbage Seeds have been verified by The Non-GMO Project.
This packet sows up to 43 feet.
50-55 days to maturity.
Outdoors: Sow 2-4 weeks before your average last frost date for a summer crop or 8-10 weeks before your average first fall frost date for a fall crop. Ideal soil temperature for germination is 75°-85°F. Persistent temperatures of 50°F or below while plants are young can cause bolting (premature flowering), cover as necessary.
Indoors: Sow 4-6 weeks before your average last frost date transplanting after your average last frost date, and 4-6 weeks before transplanting outdoors in summer for a fall crop. Sow in biodegradable pots to avoid root disturbance. In mild climates, sow in fall for a cool-season harvest.