When to plant cilantro / coriander in Houston
Cilantro / Coriander is cold-hardy, so every date keys off Houston's frost dates of Jan 26.
Step 1 · Sow
Direct sow outdoors
Dec 25 – Jan 15
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Feb 8 – Mar 5
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Aug 26 – Sep 9
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Oct 17 – Nov 11
Maturity window for the second sowing.
Window
Days to maturity
45 – 70 d
Houston's 317-day season leaves this much room.
Cilantro / Coriander on Houston'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
JAN 26
DEC 9
Common questions
When can I sow cilantro / coriander outdoors in Houston?
Direct-sow around late December (Dec 25–Jan 15) in Houston, based on its local frost dates. Confidence 81%.
When will cilantro / coriander be ready to harvest in Houston?
Expect to harvest from around early February (Feb 8–Mar 5) in Houston, based on its local frost dates. Confidence 76%.
Can I plant cilantro / coriander in autumn in Houston?
Yes — Houston supports a second, autumn sowing of cilantro / coriander around late August (Aug 26–Sep 9), timed to mature before the first fall frost.
How long is the growing season in Houston?
Houston has roughly 317 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 Houston's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.