What plant hardiness zone is Lisbon

Lisbon is located at Howard County, Maryland (MD), USA.

Plant hardiness zone (winter frost zone or gardening zone) for Lisbon 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.