Interactive United Kingdom and Ireland Gardening and Plant Hardiness Zone Map
Based on the 1990 USDA Hardiness Zone Map, this interactive version covers the UK and Ireland using USDA hardiness zone classifications.
USDA Zone 7a0°F to 5°F | USDA Zone 7b5°F to 10°F | USDA Zone 8a10°F to 15°F |
USDA Zone 8b
15°F to 20°FUSDA Zone 9a
20°F to 25°FUSDA Zone 9b
25°F to 30°FUSDA Zone 10a
30°F to 35°FWhat are Hardiness Zones, Gardening Zones, Growing Zones and Plant Zones?
Hardiness Zones, Gardening Zones, Growing Zones and Plant Zones refer to defined geographic regions that can support specific plants, flowers and trees. The zones define a minimum range of temperatures that a plant or tree can survive safely in that zone. The most commonly used Hardiness Zones were defined by the USDA. The USDA provides a hard copy map that displays these zone throughout the US. The last update to this map covers minimum temperatures from 1961 to 1990. An updated map is currently in production, but has not been released yet. Plant Maps provides the only interactive version of the USDA hardiness zone map available on the internet.