What plant hardiness zone is Washington Grove

Washington Grove is located at Montgomery County, Maryland (MD), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Washington Grove 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.

Washington Grove, Maryland @ wikipedia.