Results: ZONE 3
| Minimum temperatures: Zone 3 can be found in Alaska; southern Canada; along Hudson Bay and mainland Newfoundland; in the interior areas of Maine, Vermont, and upstate New York; across the northern Midwest; and into Montana. Some of the highest regions in Wyoming, Utah and Colorado also fall in this zone. The lower latitudes mean winter is not as cold as in Zones 1 and 2, but frosts can still occur any night of the year and the growing season is short. Plants that will survive this zone include Berberis thunbergii (Japanese bayberry), Dianthus alpinus (alpine dianthus), Elaeagnus angustifolia (Russian olive), Iris pumila (dwarf bearded iris), Juniperus communis (common juniper) and Malus baccata (Siberian crabapple).
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