What plant hardiness zone is Onyx

Onyx is located at Kern County, California (CA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Onyx 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.