What plant hardiness zone is Casa Blanca
Casa Blanca is located at Pinal County, Arizona (AZ), USA.
Plant hardiness zone (winter frost zone or gardening zone) for Casa Blanca is 9a by the USDA scale.
Coldest zone's winter temperature is +20 … +25 °F.
Plants of 9a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 9a USDA.
Casa Blanca, Arizona @ wikipedia.