When to plant cilantro / coriander in Durham
Cilantro / Coriander is cold-hardy, so every date keys off Durham's frost dates of Apr 2.
Step 1 · Sow
Direct sow outdoors
Mar 19 – Apr 9
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 3 – May 28
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Jul 27 – Aug 10
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Sep 17 – Oct 12
Maturity window for the second sowing.
Window
Days to maturity
45 – 70 d
Durham's 218-day season leaves this much room.
Cilantro / Coriander on Durham'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 2
NOV 1
Common questions
When can I sow cilantro / coriander outdoors in Durham?
Direct-sow around mid March (Mar 19–Apr 9) in Durham, based on its local frost dates. Confidence 83%.
When will cilantro / coriander be ready to harvest in Durham?
Expect to harvest from around early May (May 3–May 28) in Durham, based on its local frost dates. Confidence 75%.
Can I plant cilantro / coriander in autumn in Durham?
Yes — Durham supports a second, autumn sowing of cilantro / coriander around late July (Jul 27–Aug 10), timed to mature before the first fall frost.
How long is the growing season in Durham?
Durham has roughly 218 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 Durham's frost dates.
Confidence 83/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.