United States Edition

USDA Hardiness Zone 3b

Zone 3b is a zone in the USDA Hardiness climate zone rating system. The USDA Hardiness system can be useful to gardeners in establishing if certain plants are suitable for your garden's microclimate and was originally devised by the US department of agriculture. There are currently 225 gardens being tracked on Folia that are in USDA Zone 3b.

Some popular plants that tend to grow very well in this zone include Chili pepper, Tomato, Sweet pepper, Carrot, Bean, Potato, Broccoli, Petunia, Sunflower and Winter squash.

Some locations recently identified as being in this zone include Laurentians (Canada), Lethbridge (Canada), Cold Lake (Canada), Jericho, VT (United States), Edmonton (Canada), Eau Claire (United States), Ottawa (Canada), Ottawa (Canada), Lethbridge (Canada), mount Washington (United States), (Canada), Altona (Canada), Edmonton (Canada), Hinesburg (United States), Edmonton (Canada), Bozeman, MT (United States), Palmer, Alaska (United States), Atlanta (United States), Rexburg, Idaho (United States), san diego (United States), (Singapore), San Francisco (United States), Edmonton (Canada), Stanchfield, MN (United States), Driggs (United States), Tomahawk, WI (United States), Winnipeg (Canada), Alberton (Canada), Calgary (Canada) and Hays, Alberta (Canada).

If you are in 3b, lowest temperatures in your garden should be around -37°C [-35°F] to -34°C [-29°F].

The corresponding Sunset zone for 3b is approx. A1.

Hello, new zone 3b gardeners! View all

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New gardens in zone 3b View all

Popular plants for zone 3b gardens

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