When to plant cilantro / coriander in Green Bay
Cilantro / Coriander is cold-hardy, so every date keys off Green Bay's frost dates of May 4.
Step 1 · Sow
Direct sow outdoors
Apr 25 – May 16
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 9 – Jul 4
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Jun 22 – Jul 6
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Aug 13 – Sep 7
Maturity window for the second sowing.
Window
Days to maturity
45 – 70 d
Green Bay's 152-day season leaves this much room.
Cilantro / Coriander on Green Bay'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
MAY 4
OCT 5
Common questions
When can I sow cilantro / coriander outdoors in Green Bay?
Direct-sow around late April (Apr 25–May 16) in Green Bay, based on its local frost dates. Confidence 85%.
When will cilantro / coriander be ready to harvest in Green Bay?
Expect to harvest from around early June (Jun 9–Jul 4) in Green Bay, based on its local frost dates. Confidence 79%.
Can I plant cilantro / coriander in autumn in Green Bay?
Yes — Green Bay supports a second, autumn sowing of cilantro / coriander around late June (Jun 22–Jul 6), timed to mature before the first fall frost.
How long is the growing season in Green Bay?
Green Bay has roughly 152 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 Green Bay's frost dates.
Confidence 88/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.