Plant Hardiness Zones in Canada


Zone Hardiness of Some Trees
9a Southern magnolia (Magnolia grandiflora)
8 Pacific madrone (Arbutus menziesii)
Pacific dogwood (Cornus nuttallii)
7b Dove tree (Davidia involucrata)
7 Sweet gum (Liquidambar styraciflua)
Royal paulownia (Paulownia tomentosa)
6b Flowering dogwood (Cornus florida)
6 European beech (Fagus sylvatica)
Tree of heaven (Ailanthus altissima)
Redbud (Cercis canadensis)
Goldenchain (Laburnum X watereri)
5b Horse-chestnut (Aesculus hippocastanum)
5 Norway maple (Acer platanoides)
English oak (Quercus robur)
4b Yellowwood (Cladrastis lutea)
Scotch elm (Ulmus glabra)
4 Maidenhair tree (Ginkgo biloba)
Black locust (Robinia pseudoacacia)
3b Black walnut (Juglans nigra)
3 Littleleaf linden (Tilia cordata)
2b Ohio buckeye (Aesculus glabra)
Hackberry (Celtis occidentalis)
White ash (Fraxinus americana)
2 European birch (Betula verrucosa)
American elm (Ulmus americana)
1b Laurel willow (Salix pentandra)
1 White spruce (Picea glauca)

Source: Plant Hardiness Zones in Canada map, 1991