When to plant cilantro / coriander in Oklahoma City
Cilantro / Coriander is cold-hardy, so every date keys off Oklahoma City's frost dates of Apr 3.
Step 1 · Sow
Direct sow outdoors
Mar 20 – Apr 10
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 4 – May 29
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Jul 19 – Aug 2
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Sep 9 – Oct 4
Maturity window for the second sowing.
Window
Days to maturity
45 – 70 d
Oklahoma City's 223-day season leaves this much room.
Cilantro / Coriander on Oklahoma City'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 3
NOV 5
Common questions
When can I sow cilantro / coriander outdoors in Oklahoma City?
Direct-sow around mid March (Mar 20–Apr 10) in Oklahoma City, based on its local frost dates. Confidence 88%.
When will cilantro / coriander be ready to harvest in Oklahoma City?
Expect to harvest from around early May (May 4–May 29) in Oklahoma City, based on its local frost dates. Confidence 79%.
Can I plant cilantro / coriander in autumn in Oklahoma City?
Yes — Oklahoma City supports a second, autumn sowing of cilantro / coriander around mid July (Jul 19–Aug 2), timed to mature before the first fall frost.
How long is the growing season in Oklahoma City?
Oklahoma City has roughly 223 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 Oklahoma City's frost dates.
Confidence 88/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.