Kossak will reach a diameter of up to 8", and the interior will still be sweet, delicious, and tender. Peel the woody "skin" prior to cooking. For best quality and storage, harvest when round and about 8" diameter, before it begins to elongate. Kossak will keep in cold storage for up to 4 months. Organic seeds is also available. Avg. 5,800 seeds/oz. Packet: 100 seeds.
Latin Name: Brassica oleracea (gongylodes group)
Days to Maturity or Bloom:
Shipping Information & Notes
CULTURE: Kohlrabi prefers mild or cool weather. It is grown throughout the season in the North, and during fall and winter in the South. Sow 15 seeds/ft., 1/4- 1/2" deep, in rows 12-18" apart. Thin fresh market varieties to 4" between plants. Thin storage varieties such as 'Kossak' to 10" between plants. For earliest crops start in flats or plug trays and transplant. Fertile, well-irrigated soil promotes rapid growth which makes for a sweeter flavored crop. Harvest when roots are about 2" diameter. DAYS TO MATURITY: From direct seeding; subtract about 14 days if transplanting. DISEASE:We only stock seed lots that have been tested free of black rot in a sample of 30,000 seeds. AVG. DIRECT SEEDING RATE: 250 seeds sows 16', 1,000 seeds sows 66', 436,000/acre at 15 seeds/ft with rows 18" apart. TRANSPLANTS: Avg. 4,500 plants/oz., 800 plants/1,000 seeds. SIZED SEEDS: Standard except where noted. SEED SPECS: SEEDS/OZ.: 5,500-7,100 (avg. 6,300). PACKET: 100 seeds sows 8'.