What plant hardiness zone is Fort Washington

Fort Washington is located at Prince George's County, Maryland (MD), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Fort Washington is 7b by the USDA scale.

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

Plants of 7b USDA hardiness zone suitable for outdoor gardening and growing in this winter frost zone 7b USDA.

Fort Washington, Maryland @ wikipedia.