What plant hardiness zone is Columbia City

Columbia City is located at Columbia County, Oregon (OR), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Columbia City is 8b by the USDA scale.

Coldest zone's winter temperature is +15 … +20 °F.

Plants of 8b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 8b USDA.

Columbia City, Oregon @ wikipedia.