USDA Zone 3 planting guide
114 frost-free daysUSDA hardiness zone 3 runs through 2 cities we cover, with a short growing season of about 114 frost-free days.Frost isn’t one date across a whole zone, so these are ranges — each city page uses its own nearest NOAA station.
What to plant in Zone 3
102 crops fit the seasonWith about 114 frost-free days, these crops have time to reach maturity. Open a crop for its exact indoor-start, transplant, and direct-sow dates, or check a city below for exact local timing.
Cities in Zone 3
2 citiesZone 3 planting FAQ
What can I grow in USDA zone 3?
With about 114 frost-free days, zone 3 has time to mature 84 of the crops we track — including acorn squash, amaranth, arugula, basil, beet. See the full list above, each linked to its planting dates.
What are the frost dates for zone 3?
Across zone 3, the last spring frost falls between May 17 and June 5, and the first fall frost between September 8 and September 26 (50% chance, 32°F). Your city page gives the exact dates for your location.
How long is the growing season in zone 3?
Zone 3 averages about 114 frost-free days, ranging from 95 to 132 days between its coolest and mildest cities.
Hardiness zones from the USDA/PRISM map · frost dates from 1991–2020 NOAA climate normals, aggregated across this zone’s cities. How we compute this.