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 218 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 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), Hays, Alberta (Canada) and Halifax (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

kelly
KeriAnne
Kippersforbreakfast
madmblue
mfadel20
cporkkon
Cheers
nestandsparkle
GardenGusto
dansager1
GeorgeSr

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New gardens in zone 3b View all

  • GeorgeSr's Sandbag grow bag garden

    Sandbag grow bag garden

    Zone 3b Converted a sub-irrigated and a raised bed to HKPG.

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  • prairiepatch's pole garden garden

    pole garden garden

    Zone 3b

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  • GeorgeSr's Greenhouse #2 garden

    Greenhouse #2 garden

    Zone 3b Decided to make another greenhouse garden and locate it just north of the existing greenhouse. There will be a three foot space between the two gar...

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  • GeorgeSr's Sub-Irrigated, Air pruning, Auto Watering  garden

    Sub-Irrigated, Air pruning, Auto Watering garden

    Zone 3b Working on a design for a garden using: 1/2 inch EMT conduit Yardworks® 3' x 50' Professional Underlayment Model Number: 00043 | Menards® SK...

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  • GeorgeSr's Planting Suckers garden

    Planting Suckers garden

    Zone 3b Decided to see how this works with the trimmings of the tomatoes. At first I planted the leaves, and then realized I was doing it all wrong. So, as...

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Popular plants for zone 3b gardens

More USDA Zones Map

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