What plant hardiness zone is Hermiston

Hermiston is located at Umatilla County, Oregon (OR), USA.

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