Plant Hardiness Zones in Canada


Zone Indicator Shrub
9a Plume cryptomeria (Cryptomeria japonica 'Elegans')
Sweet bay, laurel (Laurus nobilis)
Chinese pieris (Pieris forrestii)
8 Japanese aucuba (Aucuba japonica)
Chilean pernettya (Pernettya mucronata)
Laurestinus (Viburnum tinus)
7 English box (Buxus sempervirens)
(Huypericum hookerianum 'Hidcote')
Cherry-laurel (Prunus laurocerasus)
6 Japanese maple (Acer palmatum)
Slender deutzia (Deutzia gracilis)
Showy forsythia (Forsythia X intermedia 'Spectabilis')
5 Smokebush (Cotinus coggygria)
Early forsythia (Forsythia ovata)
Fragrant viburnum (Viburnum carlesii)
4 Peegee hydrangea (Hydrangea paniculata 'Grandiflora')
Bouquet Blanc mock-orange (Philadelphus 'Bouquet Blanc')
Japanese yew (Taxus cuspidata)
3 Winged spindletree (Euonymus alata)
Staghorn sumac (Rhus typhina)
Garland spirea (Spiraea X arguta)
2 Siberian peashrub (Caragana arborescens)
Siberian dogwood (Cornus alba 'Sibirica')
European cotoneaster (Cotoneaster integerrima)
1 Saskatoon (Amelanchier alnifolia)
Hedge cotoneaster (Cotoneaster lucida)
Mugo pine (Pinus mugo mughus)

Source: Plant Hardiness Zones in Canada map, 1991