Coriander or cilantro as its more commonly known in the USA is one of the most widely used herbs. You find it growing in pots from South America to India. It generally is slow to run to seed so it gives you a longer harvest. It’s commonly used in curry, chutney or as a salad leaf. Best added at the last minute for full effect.
Sow indoors all year round if you want leaves for any recipes. When grown indoors, sow 0.5cm (1/4″) deep and thinly in small pots of compost or good soil. Keep watered and place in a warm, light position on the windowsill. Maintain a temperature of between 16ºC and 20ºC (60-68ºF) is ideal.
If you sow outdoors in the UK for example, then from March to June is the only time. It’s best to sow thinly where it is to crop and 0.5cm or 1/4 in. deep. Sow into finely prepared soil which has been watered already. The seedling appear in 14 to 21 days. Thin seedlings to 20cm (8″) apart. I water as often as I can until the plants are established. For a continuous supply, make sowings at two or three week intervals.
Coriander can be sown straight into the ground or into modular trays with 5 seeds to a cell.
Pick the leaves as required. Most crops outdoors will start in may. Pink a few leaves from each plant so they can regrow quickly. Use dried or frozen but fresh is best for flavour.