PlantyBoxPot and soil
A pot at least 20 cm (8 in) deep: it has a long root and hates transplanting, so sow it straight into its final pot.
Light and position
Sun in spring and autumn, part shade in summer to slow flowering.
Watering
Keep the soil cool and moist: about every 2 days. Thirst makes it bolt faster.
Feeding
A light leafy-plant feed every 2 weeks. The cycle is short: rich mix is often enough.
Harvest
10-15 cm plant with broad leaves; pick it before it bolts.
How to harvestCut the outer stems. Once a flower stalk appears, leaves turn thin and bitter.
Common problems
Heat and long days cause it. Sow in spring and late summer, in part shade, and pick slow-bolting varieties.
It's flowering: pick the remaining broad leaves now, or let it set seed and collect the seeds.
Waterlogging or sowing too thickly. Thin them and check drainage.
FAQ
When should I sow coriander in pots?
In spring and late summer, a little every 3 weeks for a steady supply of leaves.
How do I harvest cilantro?
Cut the outer stems once the plant is 10-15 cm (4-6 in) tall, before a flower stalk appears.
Can I use the seeds?
Yes: let the seed heads dry on the plant and collect the seeds when they turn brown.
