When to plant cilantro / coriander in Spokane
Cilantro / Coriander is cold-hardy, so every date keys off Spokane's frost dates of Apr 30.
Step 1 · Sow
Direct sow outdoors
Apr 17 – May 8
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 1 – Jun 26
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Jun 24 – Jul 8
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Aug 15 – Sep 9
Maturity window for the second sowing.
Window
Days to maturity
45 – 70 d
Spokane's 162-day season leaves this much room.
Cilantro / Coriander on Spokane'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 30
OCT 9
Common questions
When can I sow cilantro / coriander outdoors in Spokane?
Direct-sow around mid April (Apr 17–May 8) in Spokane, based on its local frost dates. Confidence 83%.
When will cilantro / coriander be ready to harvest in Spokane?
Expect to harvest from around early June (Jun 1–Jun 26) in Spokane, based on its local frost dates. Confidence 77%.
Can I plant cilantro / coriander in autumn in Spokane?
Yes — Spokane supports a second, autumn sowing of cilantro / coriander around late June (Jun 24–Jul 8), timed to mature before the first fall frost.
How long is the growing season in Spokane?
Spokane has roughly 162 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 Spokane's frost dates.
Confidence 86/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.