Kale - Nero Di Toscana This variety is easy to grow, for baby leaf or mature winter plants. Its unusual dark wrinkled leaves, can be eaten raw or cooked and is an excellent source of vitamin C and vitamin A. Sow outdoors thinly from April to September, in a seed bed, 1.5cm deep, directly into finely-prepared, well-cultivated, moist, fertile soil. Allow 30cm between rows. Seedlings usually appear in 14-28 days. Thin to 45cm apart. No thinning is necessary if only baby leaves are required. Keep moist. Regular sowings, made every two to three weeks, will ensure a continuous supply. Harvest baby leaves from June. Or sow indoors, from March to May, 0.5cm deep, in a tray of compost. Keep warm and moist. A temperature of 15°C is ideal. Transplant 5cm apart to other trays, when large enough to handle. Gradually accustom young plants to outside conditions before planting out, 45cm apart, during May/June, into well-cultivated, fertile soil. Harvest mature plants from September to March.