When to plant potato in Toronto
Potato is cold-hardy, so every date keys off Toronto's frost dates of May 3.
Step 1 · Sow
Direct sow outdoors
Apr 25 – May 16
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jul 4 – Aug 23
Picking runs until conditions turn against the crop.
Window
Days to maturity
70 – 120 d
Toronto's 160-day season leaves this much room.
Potato on Toronto'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 3
OCT 12
Common questions
When can I sow potato outdoors in Toronto?
Direct-sow around late April (Apr 25–May 16) in Toronto, based on its local frost dates. Confidence 81%.
When will potato be ready to harvest in Toronto?
Expect to harvest from around early July (Jul 4–Aug 23) in Toronto, based on its local frost dates. Confidence 75%.
How long is the growing season in Toronto?
Toronto has roughly 160 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 Toronto's frost dates.
Confidence 83/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.