Knox County, Maine, ME, USA plant hardiness zones (gardening zones)

Plant hardiness zones (winter frost zones or gardening zones) range for Knox County, Maine (ME), USA is:

• 5b
• 6a

by the USDA scale.

• coldest zone's winter temperature: −15 … -10 °F

• warmest zone's winter temperature: −10 … -5 °F

Cities of Knox County, Maine (ME), USA

• AppletonUSDA hardiness zone: 5b
• CamdenUSDA hardiness zone: 5b
• CushingUSDA hardiness zone: 6a
• FriendshipUSDA hardiness zone: 6a
• Glen CoveUSDA hardiness zone: 6a
• HopeUSDA hardiness zone: 5b
• Isle au HautUSDA hardiness zone: 6a
• MatinicusUSDA hardiness zone: 6a
• North HavenUSDA hardiness zone: 5b
• Owls HeadUSDA hardiness zone: 6a
• Port ClydeUSDA hardiness zone: 6a
• RocklandUSDA hardiness zone: 6a
• RockportUSDA hardiness zone: 5b
• Saint GeorgeUSDA hardiness zone: 6a
• South ThomastonUSDA hardiness zone: 6a
• Spruce HeadUSDA hardiness zone: 6a
• Tenants HarborUSDA hardiness zone: 6a
• ThomastonUSDA hardiness zone: 6a
• UnionUSDA hardiness zone: 5b
• VinalhavenUSDA hardiness zone: 6a
• WarrenUSDA hardiness zone: 5b
• WashingtonUSDA hardiness zone: 5b
• West RockportUSDA hardiness zone: 5b