When to plant radish in Green Bay
Radish is cold-hardy, so every date keys off Green Bay's frost dates of May 4.
Step 1 · Sow
Direct sow outdoors
Apr 17 – May 8
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 12 – May 17
Picking runs until conditions turn against the crop.
Step 3 · Second sowing
Autumn / second sowing
Aug 15 – Aug 29
A second window for a fall crop, timed to mature before the first frost.
Step 4 · Second harvest
Autumn crop harvest
Sep 16 – Sep 21
Maturity window for the second sowing.
Window
Days to maturity
25 – 30 d
Green Bay's 152-day season leaves this much room.
Radish 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 radish outdoors in Green Bay?
Direct-sow around mid April (Apr 17–May 8) in Green Bay, based on its local frost dates. Confidence 85%.
When will radish be ready to harvest in Green Bay?
Expect to harvest from around mid May (May 12–May 17) in Green Bay, based on its local frost dates. Confidence 79%.
Can I plant radish in autumn in Green Bay?
Yes — Green Bay supports a second, autumn sowing of radish around mid August (Aug 15–Aug 29), 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 radish to maturity outdoors.
The rule of thumb
Sow radish 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.