What plant hardiness zone is College Place

College Place is located at Walla Walla County, Washington (WA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for College Place 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.

College Place, Washington @ wikipedia.