What plant hardiness zone is Costa Mesa

Costa Mesa is located at Orange County, California (CA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Costa Mesa 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.

Costa Mesa, California @ wikipedia.