Representative plants listed under the coldest zones in which they normally succeed.
Zone Ratings: Average Annual Minimum Temperature Range
1 & 2 3 & 4 5 & 6 7 & 8 9 & 10
| Zone |
Botanical (and Common) Names |
|
1 Below -50 F Below -45.6 C |
Betula glandulosa (Dwarf birch) Empetrum nigrum (Crowberry) Populus fremuloides (Quaking aspen) Potentilla pensylvanica (Pennsylvania cinquefoil) Rhododendron lapponicum (Lapland rhododendron) Salix reticulate (Netleaf willow) |
|
2 -50 to -40 F -45.6 to -40 C |
Betula papyrifera (Paper birch) Cornus canadensis (Bunchberry dogwood) Elaeagnus commutata (Silverberry) Larix laricina (Eastern larch) Potentilla fruticosa (Bush cinquefoil) Viburnum trilobum (American cranberry bush) |
| Zone | Botanical (and Common) Names |
| 3
-40 to -30 F -40 to -34.5 C |
Berberis thunbetgii (Japanese bayberry) Elaeagnus angustifolia (Russian olive) Junipercus communes (Common juniper) Lonicera tatarica (Tatarian honeysuckle) Malus baocata (Siberian crabapple) Thuia occidentalis (American arborvitae) |
| 4
-30 to -20 F -43.5 to -28.9 C |
Acer saccharum (Sugar maple) Hydrangea paniculata (Panicle hydrangea) Juniperus chinensis (Chinese juniper) Ligustrum amurense (Amur River privet) Parthenocissus quinquefolia (Virginia creeper) Spiraea x vanhouttei (Vanhouffe spirea) |
| Zone | Botanical (and Common) Names |
| 5
-20 to -10 F -28.9 to -23.3 C |
Cornus florida (Flowering dogwood) Deutzia gracilis (Slender deutzia) Ligustrum vulgare (Common privet) Paithenocissus tricuspidata (Boston ivy) Rosa multiflora (Japanese rose) Taxus cuspidata (Japanese yew) |
| 6
-10 to 0 F -23.3 to -17.8 C |
Acer palmatum (Japanese maple) Buxus sempervirens (Common boxwood) Euonymus follunei (Winter creeper) Hedera helix (English ivy) Ilex opaca (American holly) Ligustrum ovalifolium (California privet) |
| Zone | Botanical (and Common) Names |
| 7
0 to 10 F -17.8 to -12.3 C |
Acer macrophylium (Bigleaf maple) Rhododendron Kurume hybrids (Kurume azalea) Cedrus atlantica (Atlas cedar) Cotoneaster microphylla (Small-leaf cotoneaster) Ilex aquifolium (English holly) Taxus baccata (English yew) |
| 8
10 to 20 F -12.3 to -6.6 C |
Arbutus unedo (Strawberry tree) Choisya temata (Mexican orange) Olearia haastii (New Zealand daisy-bush) Pittosporum tobira (Japanese pittosporum) Prunus laurocerasus (Cherry-laurel) Viburnum tinus (Laurestinus) |
| Zone | Botanical (and Common) Names |
| 9
20 to 30 F -6.6 to -1.1 C |
Asparagus setacous (Asparagus fern) Eucalyptus globulus (Tasmanian blue gum) Syzygium paniculatum (Australian bush cherry) Fuchsia hybrids (Fuchsia) Grevillea robusta (Silk-oak) Schinus molle (California pepper tree) |
| 10
30 to 40 F -1.1 to 4.4 C |
Bougainvillea spectabilis (Bougainvillea) Cassia fistula (Golden shower) Eucalyptus citriodora (Lemon eucalyptus) Ficus elastica (Rubber plant) Ensete ventricosum (Ensete) Roystonea regia (Royal palm) |
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