What plant hardiness zone is San Quentin

San Quentin is located at Marin County, California (CA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for San Quentin 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.