When to plant cilantro / coriander in Bristol
Cilantro / Coriander is cold-hardy, so every date keys off Bristol's frost dates of Apr 12.
Step 1 · Sow
Direct sow outdoors
Mar 29 – Apr 19
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 13 – Jun 7
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Jul 22 – Aug 5
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Sep 12 – Oct 7
Maturity window for the second sowing.
Window
Days to maturity
45 – 70 d
Bristol's 204-day season leaves this much room.
Cilantro / Coriander on Bristol's growing year
Frost-bounded season with crops mapped onto the 12-month axis.
Frost risk Growing Harvest
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
FROST
FROST
APR 12
NOV 11
Common questions
When can I sow cilantro / coriander outdoors in Bristol?
Direct-sow around late March (Mar 29–Apr 19) in Bristol, based on its local frost dates. Confidence 83%.
When will cilantro / coriander be ready to harvest in Bristol?
Expect to harvest from around mid May (May 13–Jun 7) in Bristol, based on its local frost dates. Confidence 75%.
Can I plant cilantro / coriander in autumn in Bristol?
Yes — Bristol supports a second, autumn sowing of cilantro / coriander around late July (Jul 22–Aug 5), timed to mature before the first fall frost.
How long is the growing season in Bristol?
Bristol has roughly 204 frost-free days, which is enough time to grow cilantro / coriander to maturity outdoors.
The rule of thumb
Sow cilantro / coriander as soon as the soil is workable — it tolerates cool weather and light frost. Every date on this page is derived from that rule and Bristol's frost dates.
Confidence 83/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.