Calypso
A slow-bolting coriander with useful leaf production in UK summers.
Coriandrum sativum

A fast leaf herb for the UK garden. Sow little and often in a cool, sunny spot with moist, free-draining soil, and pick the leaves before plants run to seed.
50 cm · Full Sun · Moderate Water
Calibrated to Glasgow · last frost ≈ 25 Apr
| Activity | January | February | March | April | May | June | July | August | September | October | November | December |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sow outdoors | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | No | No | No |
| Harvest | No | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes | No | No |
What to do through the growing season
01
Sow thinly around 11th April - 10th September, cover . Sow a fresh batch every 14 days. Keep moist to germinate.
02
After each sowing, thin to apart. Use the extras as baby leaves. Do not transplant them.
03
After each sowing, from 11th May, take flower stems as soon as they appear if you want leaves. Pick often. Keep this up through 25th October.
04
After each sowing, start picking from 11th May as soon as the leaves are large enough to pick. Keep cutting through 25th October.
Tap a plant to see why it works (or doesn't) with Coriander.
Companion planting can deter pests, improve pollination, and make better use of space. Some plants confuse pests or attract beneficial insects; others improve soil or offer shade to neighbours that need it.
Popular varieties of Coriander to consider
A slow-bolting coriander with useful leaf production in UK summers.
A compact, slow-to-bolt type that gives plenty of foliage for pots or small beds.
A reliable leaf coriander that copes well with repeated cutting.
Finely cut foliage with a milder flavour and strong leaf production.