When to plant cilantro / coriander in Phoenix
Cilantro / Coriander is cold-hardy, so every date keys off Phoenix's frost dates of Jan 27.
Step 1 · Sow
Direct sow outdoors
Dec 27 – Jan 17
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Feb 10 – Mar 7
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Aug 27 – Sep 10
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Oct 18 – Nov 12
Maturity window for the second sowing.
Window
Days to maturity
45 – 70 d
Phoenix's 314-day season leaves this much room.
Cilantro / Coriander on Phoenix'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 27
DEC 7
Common questions
When can I sow cilantro / coriander outdoors in Phoenix?
Direct-sow around late December (Dec 27–Jan 17) in Phoenix, based on its local frost dates. Confidence 80%.
When will cilantro / coriander be ready to harvest in Phoenix?
Expect to harvest from around early February (Feb 10–Mar 7) in Phoenix, based on its local frost dates. Confidence 74%.
Can I plant cilantro / coriander in autumn in Phoenix?
Yes — Phoenix supports a second, autumn sowing of cilantro / coriander around late August (Aug 27–Sep 10), timed to mature before the first fall frost.
How long is the growing season in Phoenix?
Phoenix has roughly 314 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 Phoenix's frost dates.
Confidence 82/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.