When to Plant Potatoes in Zone 4
In USDA zone 4a, plant outdoors May 1 to July 30, and expect your first harvest around July 30. (4a shown here — see 4a and 4b dates separately below.)
Potatoes planting calendar for USDA Zone 4a
Average last spring frost
May 15
Average first fall frost
September 20
Direct sow
May 1
Projected first harvest
Jul 30
Most potatoes mature in about 70 to 110 days depending on the variety, needing roughly 128 frost-free days in zone 4a.
Potatoes planting calendar for USDA Zone 4b
Average last spring frost
May 10
Average first fall frost
September 25
Direct sow
Apr 26
Projected first harvest
Jul 25
Most potatoes mature in about 70 to 110 days depending on the variety, needing roughly 138 frost-free days in zone 4b.
Not sure whether you're in 4a or 4b? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
10 varieties of potatoes in the HomeSown library. Tap any for its full grow guide.
Common problems with potatoes
What to watch for, with identification and treatment for each
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