Speckled alder (Alnus incana ssp. rugosa)
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Latin (scientific) name: Alnus incana ssp. rugosa
Common English name: Speckled alder
Other names: Tag alder, gray alder, hoary alder
French name: Aulne rugueux
Tolerates a wide range of temperatures and prefers moist, sunny sites.
Found across Canada from the Great Lakes region up to northern Northwest Territories.
0a, 0b, 1a, 1b, 2a, 2b, 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b
A hardiness zone is a geographically defined area where a given plant is capable of growing. Hardiness zones are based largely on climate, particularly minimum temperatures. Zone 0 covers the harshest areas in Canada for plant species. Higher numbers represent more temperate areas.
For more information on plant hardiness zones in Canada, visit Natural Resources Canada.
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