USDA Planting Zones of the Southwestern USA range from zone 6 to 9
- United States Mainland - The lower 48 States of the USA
- Northwestern USA - Washington - Montana - Oregon - Idaho
- North Central USA - Wyoming - North Dakota - Nebraska - Iowa - Minnesota - Wisconsin
- Northeastern USA - Illinois - Michigan - Maine - Vermont - New Hampshire - New York - Massachusetts - Rhode Island - Pennsylvania - Virginia - West Virginia - Ohio - Indiana
- Southwestern USA - Arizona - Utah - Nevada - California
- South Central USA - Louisiana - Arkansas - Missouri - Kansas - Oklahoma - Texas - New Mexico - Colorado
- Southeastern USA - Florida - Georgia - Alabama - Mississippi - Tennessee - South Carolina - North Carolina
- Alaska - Hawaii - East Canada - West Canada - Mexico