Coriander should be ready to harvest this month — check for size and colour.
Growing Calendar
This month: Jul
Log to journalReady to harvest now
- •Check size and ripeness
- •Harvest regularly
- •Store or use fresh
Watch Out For
Bolts (runs to flower) within days once temperatures climb above 25°C or daylight stretches past 12 hours. Sow little and often rather than expecting one sowing to last all summer
Resents root disturbance and bolts faster if transplanted. Always sow direct where it is to grow rather than starting it in modules
Slugs target seedlings hard. Protect with copper tape or torchlit evening patrols until plants are established
Grown Organically
Every method in this guide works with natural systems — no synthetic chemicals, no shortcuts.
Read our approachCommon Questions
About growing Coriander in the UK
Why does my coriander keep bolting?
Coriander bolts (runs to flower) in response to heat and long summer days, both natural triggers for this cool-season herb. Sow little and often every 2–3 weeks, choose a slow-bolt variety, and give summer sowings some afternoon shade to extend the leafy stage.
Can I still use coriander once it's flowered?
The leaves turn bitter and feathery once flowering starts, but the flowers themselves are edible, and the seeds that follow can be collected and used whole or ground as the spice coriander seed.
Why has my coriander gone thin and leggy after transplanting?
Coriander resents root disturbance and often bolts prematurely when transplanted. Always sow it direct where it's meant to grow rather than starting it in trays or modules.
How long does coriander take from sowing to harvest?
About four weeks to the first usable leaves. Because each sowing only lasts a few weeks before bolting, successive small sowings every 2–3 weeks give a more reliable continuous supply than one large sowing.
Member guides
There's more to growing Coriander than this guide covers.
A Garden Journal to log what worked, a personalised sowing planner in My Garden, and monthly reminders timed to the calendar.
