What plant hardiness zone is Santa Ana

Santa Ana is located at Orange County, California (CA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Santa Ana is 10b by the USDA scale.

Coldest zone's winter temperature is +35 … +40 °F.

Plants of 10b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 10b USDA.