Not many plants will grow in USDA hardiness zone 1. The average minimum temperature in this zone is -50F and below. These are some of the few trees and shrubs that will grow in these areas.
Trees:
- Alaska-cedar (Chamaecyparis nootkatensis)
- Alpine Fir (Abies lasiocarpa)
- Mountain Alder (Alnus tenuifolia)
- Quaking aspen (Populus tremuloides)
Shrubs:
- Black crowberry (Empetrum nigrum)
- Dwarf birch (Betula glandulosa)
- Lapland rhododendron (Rhododendron lapponicum)
- Netleaf willow (Salix reticulata)
- Pennsylvania cinquefoil (Potentilla pensylvanica)
