Select Plant Hardiness Zone: Zone 2 (-50 to -40 F) Zone 3 (-40 to -30 F) Zone 4 (-30 to -20 F) Zone 5 (-20 to -10 F) Zone 6 (-10 to 0 F) Zone 7 (0 to +10 F) Zone 8 (10 to +20 F) Zone 9 (20 to +30 F)