Basel-Stadt (Basle-City), BS, Switzerland plant hardiness zones (gardening zones)

Plant hardiness zones (winter frost zones or gardening zones) range for Basel-Stadt (Basle-City) (BS), Switzerland is:

• 6b
• 7a

by the USDA scale.

• coldest zone's winter temperature: −20.6 … −17.8 °C

• warmest zone's winter temperature: −17.8 … −15 °C

Cities of Basel-Stadt (Basle-City) (BS), Switzerland

• BaselUSDA hardiness zone: 6b
• BettingenUSDA hardiness zone: 7a
• RiehenUSDA hardiness zone: 6b