What plant hardiness zone is High Bridge

High Bridge is located at Ashland County, Wisconsin (WI), USA.

Plant hardiness zone (winter frost zone or gardening zone) for High Bridge is 4a by the USDA scale.

Coldest zone's winter temperature is −30 … -25 °F.

Plants of 4a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 4a USDA.

High Bridge, Wisconsin @ wikipedia.