DibbleWhen to plant potato in Zone 3
In Zone 3, the last spring frost usually passes around May 15 and the first fall frost arrives around September 15, leaving about 123 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.
Short, cool season. Start most warm crops indoors and protect from late frosts.
Planting windows for potato in Zone 3
| Task | Window |
|---|---|
| Direct sow | May 1 to May 15 |
| Estimated harvest | Jul 30 to Aug 20 |
The harvest estimate counts 90 days to maturity, then a picking window of about 21 days. These windows use typical frost dates for Zone 3; Dibble pins them to your exact ZIP code.
Get reminders for these exact dates
Dibble turns your ZIP code into a full planting calendar and reminds you on the right day. Free to start, no account needed.
How to grow potato
Plant seed potato pieces (each with an eye) about 2 weeks before your last frost, 4 inches deep. Hill soil up as plants grow.
Companion plants
Good neighbors for Potato:
Better kept apart:
Potato in nearby zones
Keep exploring
Potato: the full growing guide · The Zone 3 planting calendar · Every crop and zone
Plant at the right time this season
Dibble builds your calendar in under a minute. Free to start, no account needed.
Dates are estimates based on typical frost dates for the zone. Your yard has its own microclimate, so use them as a starting point and adjust as you learn your space.