When to plant cabbage in Winnipeg
Cabbage is cold-hardy, so every date keys off Winnipeg's frost dates of May 8.
Step 1 · Sow
Start seeds indoors
Mar 27 – Apr 17
Before your last frost, on a warm windowsill or heat mat.
Step 2 · Plant
Transplant outdoors
Apr 24 – May 15
Once frost risk has passed and nights stay mild.
Step 3 · Harvest
Harvest window
Jul 3 – Aug 2
Picking runs until conditions turn against the crop.
Window
Days to maturity
70 – 100 d
Winnipeg's 154-day season leaves this much room.
Cabbage 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 will cabbage be ready to harvest in Winnipeg?
Expect to harvest from around early July (Jul 3–Aug 2) in Winnipeg, based on its local frost dates. Confidence 76%.
When should I start cabbage seeds indoors in Winnipeg?
Start seeds indoors around late March (Mar 27–Apr 17) in Winnipeg, based on its local frost dates. Confidence 80%.
When can I transplant cabbage outdoors in Winnipeg?
Transplant outdoors around late April (Apr 24–May 15) 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 cabbage to maturity outdoors.
The rule of thumb
Sow cabbage 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 Winnipeg's frost dates.
Confidence 84/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.