When to plant basil in Green Bay
Basil is frost-tender, so every date keys off Green Bay's last spring frost of May 4.
Step 1 · Sow
Start seeds indoors
Apr 11 – May 2
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Jun 7 – Jun 28
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Aug 6 – Sep 5
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 90 d
Green Bay's 152-day season leaves this much room.
Basil 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 basil outdoors in Green Bay?
Direct-sow around early June (Jun 7–Jun 28) in Green Bay, based on its local frost dates. Confidence 85%.
When will basil be ready to harvest in Green Bay?
Expect to harvest from around early August (Aug 6–Sep 5) in Green Bay, based on its local frost dates. Confidence 79%.
When should I start basil seeds indoors in Green Bay?
Start seeds indoors around mid April (Apr 11–May 2) in Green Bay, based on its local frost dates. Confidence 84%.
When can I transplant basil outdoors in Green Bay?
Transplant outdoors around early June (Jun 7–Jun 28) in Green Bay, based on its local frost dates. Confidence 85%.
How long is the growing season in Green Bay?
Green Bay has roughly 152 frost-free days, which is enough time to grow basil to maturity outdoors.
The rule of thumb
Sow basil 6–8 weeks before your last spring frost; plant out 2–3 weeks after it. 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.