When to plant potato in Duluth
Potato is cold-hardy, so every date keys off Duluth's frost dates of May 10.
Step 1 · Sow
Direct sow outdoors
May 13 – Jun 3
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jul 22 – Sep 10
Picking runs until conditions turn against the crop.
Window
Days to maturity
70 – 120 d
Duluth's 150-day season leaves this much room.
Potato on Duluth'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 10
OCT 7
Common questions
When can I sow potato outdoors in Duluth?
Direct-sow around mid May (May 13–Jun 3) in Duluth, based on its local frost dates. Confidence 84%.
When will potato be ready to harvest in Duluth?
Expect to harvest from around late July (Jul 22–Sep 10) in Duluth, based on its local frost dates. Confidence 78%.
How long is the growing season in Duluth?
Duluth has roughly 150 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 Duluth's frost dates.
Confidence 87/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.