What plant hardiness zone is Red Oak

Red Oak is located at Latimer County, Oklahoma (OK), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Red Oak 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.

Red Oak, Oklahoma @ wikipedia.