When to plant cilantro / coriander in Birmingham
Cilantro / Coriander is cold-hardy, so every date keys off Birmingham's frost dates of Mar 27.
Step 1 · Sow
Direct sow outdoors
Mar 13 – Apr 3
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Apr 27 – May 22
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Aug 2 – Aug 16
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Sep 23 – Oct 18
Maturity window for the second sowing.
Window
Days to maturity
45 – 70 d
Birmingham's 229-day season leaves this much room.
Cilantro / Coriander on Birmingham'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
MAR 27
NOV 11
Common questions
When can I sow cilantro / coriander outdoors in Birmingham?
Direct-sow around mid March (Mar 13–Apr 3) in Birmingham, based on its local frost dates. Confidence 89%.
When will cilantro / coriander be ready to harvest in Birmingham?
Expect to harvest from around late April (Apr 27–May 22) in Birmingham, based on its local frost dates. Confidence 80%.
Can I plant cilantro / coriander in autumn in Birmingham?
Yes — Birmingham supports a second, autumn sowing of cilantro / coriander around early August (Aug 2–Aug 16), timed to mature before the first fall frost.
How long is the growing season in Birmingham?
Birmingham has roughly 229 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 Birmingham's frost dates.
Confidence 89/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.