When to plant spinach in Winnipeg
Spinach is cold-hardy, so every date keys off Winnipeg's frost dates of May 25.
Step 1 · Sow
Direct sow outdoors
Apr 13 – May 4
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
May 23 – Jun 2
Picking runs until conditions turn against the crop.
Window
Days to maturity
40 – 50 d
Winnipeg's 118-day season leaves this much room.
Spinach 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 25
SEP 20
Common questions
When can I sow spinach outdoors in Winnipeg?
Direct-sow around mid April (Apr 13–May 4) in Winnipeg, based on its local frost dates. Confidence 72%.
When will spinach be ready to harvest in Winnipeg?
Expect to harvest from around late May (May 23–Jun 2) 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 spinach to maturity outdoors.
The rule of thumb
Sow spinach 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.