When to plant potato in Winnipeg
Potato is cold-hardy, so every date keys off Winnipeg's frost dates of May 25.
Step 1 · Sow
Direct sow outdoors
May 11 – Jun 1
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jul 20 – Sep 8
Picking runs until conditions turn against the crop.
Window
Days to maturity
70 – 120 d
Winnipeg's 118-day season leaves this much room.
Potato 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
HARVEST
MAY 25
SEP 20
Common questions
When can I sow potato outdoors in Winnipeg?
Direct-sow around mid May (May 11–Jun 1) in Winnipeg, based on its local frost dates. Confidence 72%.
When will potato be ready to harvest in Winnipeg?
Expect to harvest from around mid July (Jul 20–Sep 8) in Winnipeg, based on its local frost dates. Confidence 65%.
How long is the growing season in Winnipeg?
Winnipeg has roughly 118 frost-free days, which is enough time to grow potato to maturity outdoors.
The rule of thumb
Sow potato 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 72/100 · NASA POWER (modeled) · 1991–2020 · frost dates are probabilities, not guarantees.