What plant hardiness zone is East Richmond Heights

East Richmond Heights is located at Contra Costa County, California (CA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for East Richmond Heights is 10a by the USDA scale.

Coldest zone's winter temperature is +30 … +35 °F.

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