Winter-hardy – what does this mean?
A rough indication is given by the so-called climate, vegetation and winter-hardiness zones. They are influenced by, among other things, the altitude above sea level, the prevailing winds and the geographical location. What is interesting for the garden owner is the classification of the winter-hardiness zones (WHZ) in Germany from 5b (cool, Alps) up to 8a (warm, Rhine Valley). For every plant variety, a recommendation for the appropriate winter-hardiness zone can be made.
Photo: © roibu - Fotolia.com