What plant hardiness zone is Borough of Unionville

Borough of Unionville is located at Centre County, Pennsylvania (PA), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Borough of Unionville is 6a by the USDA scale.

Coldest zone's winter temperature is −10 … -5 °F.

Plants of 6a USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 6a USDA.