🌿 Coriander

Sowing window (UK)	March to September
Minimum soil temperature	7°C at seed depth
Sowing depth	1 cm
Spacing	30 cm apart
Days to germination	14 days
Days to harvest	50 days
Sowing method	Direct sow outdoors
Frost hardy	Yes
Sun	partial-shade
Watering	moderate
Plant family	Apiaceae

When should I sow Coriander in the UK?

In the UK, sow Coriander from March to September. It is normally sown direct outdoors. Wait until the soil has reached 7°C at seed depth rather than going by the calendar - coriander will sit and rot in cold ground.

What soil temperature does Coriander need to germinate?

Coriander needs a minimum soil temperature of 7°C at seed depth to germinate reliably. Below that, germination is slow and patchy, and seed is more likely to rot than sprout. Measure at around 5cm down, in the morning, rather than trusting air temperature.

How deep and how far apart should I sow Coriander?

For Coriander, sow it 1cm deep and space plants 30cm apart.

How long does Coriander take to grow?

Coriander takes roughly 50 days from sowing to harvest. Seed usually germinates in about 14 days.

Is Coriander frost hardy?

Yes. Coriander is frost hardy and will stand through UK frosts, so it can be left out over winter in most of the country.

Sowing data cross-checked against RHS growing guides and UK seed-merchant catalogues. Soil temperatures are the minimum for reliable germination, measured at seed depth.