Salix purpurea nana Dwarf Arctic Willow Description Very hardy with delicate but dense foliage. Makes an excellent hedge and loves moist areas! The twigs of this cold hardy shrub turn purplish in winter. Easily pruned. Characteristics Hardiness Zone: 3 Light requirements: Sun Height: 6' Spread: 6' Native: No Sizes & Prices Size: 15'' Ht $24.98 Size: 30" Ht $49.98 Other Information All Salix purpurea Salix purpurea nana Dwarf Arctic Willow Zone: 3 Sun HT: 6'