Jefferson County, Oregon, OR, USA plant hardiness zones (gardening zones)

Plant hardiness zones (winter frost zones or gardening zones) range for Jefferson County, Oregon (OR), USA is:

• 6a
• 6b
• 7a

by the USDA scale.

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

• warmest zone's winter temperature: 0 … +5 °F

Cities of Jefferson County, Oregon (OR), USA

• AshwoodUSDA hardiness zone: 6b
• Camp ShermanUSDA hardiness zone: 6b
• CulverUSDA hardiness zone: 6b
• GrizzlyUSDA hardiness zone: 6a
• MadrasUSDA hardiness zone: 6b
• MetoliusUSDA hardiness zone: 6b
• Warm SpringsUSDA hardiness zone: 7a