What plant hardiness zone is Havre de Grace

Havre de Grace is located at Harford County, Maryland (MD), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Havre de Grace 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.

Havre de Grace, Maryland @ wikipedia.