USDA zones applicable to the UK along with their corresponding temperature ranges: USDA Zone 5a: -15°F to -20°F (-26.1°C to -28.9°C) USDA Zone 5b: -10°F to -15°F (-23.3°C to -26.1°C) USDA Zone 6a: -5°F to -10°F (-20.6°C to -23.3°C) USDA Zone 6b: 0°F ...Read more
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Mapping what uk counties are in what usda zones is challenging due to the differing climate patterns and microclimates within each county. However, we can make some general observations based on the climate characteristics of different regions in the UK. Read more