What plant hardiness zone is Echo Lake

Echo Lake is located at El Dorado County, California (CA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Echo Lake is 7a by the USDA scale.

Coldest zone's winter temperature is 0 … +5 °F.

Plants of 7a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 7a USDA.

Echo Lake, California @ wikipedia.