USDA Plant Hardiness Zone Guide
Know exactly what to plant, and when.
Free planting guides for all 13 USDA hardiness zones — organised by zone, month, sun conditions, and plant category. Stop guessing. Start growing.
Find your USDA hardiness zone — enter your ZIP code:
- Hardiness zones
- 13
- Sun condition guides
- 39
- Monthly guides
- 156
- Total pages
- 261+
Browse by hardiness zone
Select your USDA zone to see tailored planting guides, frost dates, and crop calendars. Not sure of your zone? Look it up on the USDA map.
Zone 1
Extreme Cold — Alaska Interior & High Mountain Peaks
- Min temp
- -60 to -50 °F
- Season
- 50–80 days
Zone 2
Very Cold — Northern Alaska, Northern Canada, High Rockies
- Min temp
- -50 to -40 °F
- Season
- 75–100 days
Zone 3
Very Cold — Northern Plains, Upper Midwest, Interior Northwest
- Min temp
- -40 to -30 °F
- Season
- 100–130 days
Zone 4
Cold — Upper Midwest, New England, Mountain West
- Min temp
- -30 to -20 °F
- Season
- 120–150 days
Zone 5
Cool-Cold — Great Lakes, Mid-Atlantic Highlands, Rocky Mountain Foothills
- Min temp
- -20 to -10 °F
- Season
- 150–180 days
Zone 6
Temperate-Cold — Mid-Atlantic, Midwest, Pacific Northwest Highlands
- Min temp
- -10 to 0 °F
- Season
- 180–210 days
Zone 7
Mild — Mid-South, Pacific Coast, Southern Appalachians
- Min temp
- 0 to 10 °F
- Season
- 200–225 days
Zone 8
Warm-Temperate — Deep South, Pacific Coast, Lower Midwest
- Min temp
- 10 to 20 °F
- Season
- 225–270 days
Zone 9
Warm — Gulf Coast, Central Valley, Desert Southwest Margins
- Min temp
- 20 to 30 °F
- Season
- 270–310 days
Zone 10
Subtropical — South Florida, Southern California, Hawaii Lowlands
- Min temp
- 30 to 40 °F
- Season
- Year-round (365 days)
Zone 11
Tropical — Florida Keys, Hawaii, Southernmost California
- Min temp
- 40 to 50 °F
- Season
- Year-round (365 days)
Zone 12
Tropical — Puerto Rico, US Virgin Islands, Hawaii (sea level)
- Min temp
- 50 to 60 °F
- Season
- Year-round (365 days)
Zone 13
Tropical Hot — Hawaii (lowest elevations), Guam, American Samoa
- Min temp
- 60 to 70 °F
- Season
- Year-round (365 days)
Three ways to use this guide
By zone
Every zone has its own hub page with frost dates, growing season length, climate overview, and links to all monthly and category guides.
By month
Each month × zone combination shows exactly what to sow, transplant, and harvest — with colour-coded task cards and notes.
By sun exposure
Find the best plants for your specific spot — full sun, partial shade, or full shade — filtered to your zone.
Right now
What to do in May
May is the last frost month for most of the US and the traditional time to transplant warm-season vegetables. Gardens are at peak spring beauty, and the shift from cool-season to warm-season crops is in full swing.