What plant hardiness zone is Corona de Tucson

Corona de Tucson is located at Pima County, Arizona (AZ), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Corona de Tucson 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.

Corona de Tucson, Arizona @ wikipedia.