Catalogus 2004 met USDA - Bulk Boskoop

Hardiness Zonesof Europe° Fahrenheit ° Celsius1 < - 50 < - 452 -50 to -40 -45 to -403 -40 to -30 -40 to -344 -30 to -20 -34 to -295 -20 to -10 -29 to -236 -10 to - 0 -23 to -177 0 to 10 -17 to -128 10 to 20 -12 to - 79 20 to 30 - 7 to - 110 30 to 40 - 1 to 5© Verlag Paul PareyHardiness Zones of North America© U.S. National Arboretum, USDA-ARS