Komatsuna's versatile leaves can be used in spinach, in salads or stir fries. It is quick and easy to grow and slow to bolt. It is highly suitable for containers and can also be grown under cover in autumn and winter for almost all- year round cropping.
Sow outdoors thinly, from March to September where they are to crop, 2.5cm deep, directly into finely-prepared, fertile, moisture-retentive soil, which has already been watered. Allow 30cm between rows. Seedlings usually appear in 7-21 days. Keep moist. Harvest unthinned as baby leaves for salads, or thin to 10cm apart, for 'teen' leaves to use like spinach. Thin to 20cm for mature plants, which can be stir-fried or steamed. Or sow indoors from October to March, to grow in a tunnel or greenhouse. Sow into trays of compost in gentle warmth. Transplant to borders or large pots when approx. 7.5cm tall. Keep moist. Harvest all year round.