The natural diversity of woody species as a source of ornamental plants | La diversite naturelle des especes ligneuses en tant que source de plantes ornementales
1998
Belder, J. de (Arboretum de Kalmthout (Belgium))
The collection of the Kalmthout Arboretum contains 4000 plants, representing 170 genera of woody plants and 240 genera of herbaceous plants. An additional 6000 plants are kept on the site of Hemelrijk, in Essen. The material originated partly from other institutions but also from collecting trips in Japan, South and North Korea, Russia and China. A part of these introductions was evaluated or used for hybridizing with a view to produce woody plant cultivars of ornamental value, especially in the genera Hamamelis, Hydrangea, Prunus, Malus, Pyrus and Rhododendron. A large number of these new cultivars are now grown in commercial nurseries in Europe, North America and Japan
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