When to plant basil in Winnipeg
Basil is frost-tender, so every date keys off Winnipeg's last spring frost of May 8.
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 13 – Jul 4
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Aug 12 – Sep 11
Picking runs until conditions turn against the crop.
Window
Days to maturity
60 – 90 d
Winnipeg's 154-day season leaves this much room.
Basil on Winnipeg'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 8
OCT 10
Common questions
When can I sow basil outdoors in Winnipeg?
Direct-sow around mid June (Jun 13–Jul 4) in Winnipeg, based on its local frost dates. Confidence 81%.
When will basil be ready to harvest in Winnipeg?
Expect to harvest from around mid August (Aug 12–Sep 11) in Winnipeg, based on its local frost dates. Confidence 76%.
When should I start basil seeds indoors in Winnipeg?
Start seeds indoors around mid April (Apr 11–May 2) in Winnipeg, based on its local frost dates. Confidence 80%.
When can I transplant basil outdoors in Winnipeg?
Transplant outdoors around mid June (Jun 13–Jul 4) in Winnipeg, based on its local frost dates. Confidence 81%.
How long is the growing season in Winnipeg?
Winnipeg has roughly 154 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 Winnipeg's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.