Space plants: Thin to 45 cm Compatible with (can grow beside): Dill, Chervil, Anise, Cabbages, Carrots Avoid growing close to: Fennel Broadcast sow and thin to 45 cm apart. Grows to about 60cm. Harvest 30 -45 days A half-hardy herb with feathery leaves. . Grows more reliably from seeds as coriander is liable to bolt to flower and seed when seedlings are transplanted. Coriander is frost tender but it doesn't like extreme heat. So in temperate zones grow coriander during summer, in sub-tropical/tropical zones grow it during the cooler season. Needs a sunny spot and mulch to prevent drying out. Keep very well watered. If they dry out, then they will bolt to seed. Plant in successions (planting new seed every few weeks) to get a continuous supply. The seeds can be dried and ground up for curries.