For the garden at Villa Bel Air, Van den Berk Nurseries supplied the trees and large shrubs in collaboration with Vereal, which took care of the overall project, including all associated work. Van den Berk handled the greenery; the client selected the trees personally at the nursery in Sint-Oedenrode.

The garden features a broad mix of species, with many multi-stemmed and crown-raised specimens: Koelreuteria paniculata, Liquidambar styraciflua, Magnolia ×loebneri 'Merrill', Carpinus japonica 'Chinese Lantern' and Cornus kousa 'Milky Way'. Carpinus betulus is trained as a screen on a standard trunk, while Fagus sylvatica is trained as a multi-stemmed screen.

Other species include Quercus palustris, Platanus orientalis 'Minaret', Platanus ×hispanica 'Malburg' trained in roof form, Gleditsia triacanthos 'Shademaster', Acer palmatum 'Osakazuki', Amelanchier lamarckii and Euonymus europaeus 'Red Cascade'.

For planting around the trees, Van den Berk also supplied a hedge of 274 Elaeagnus ×ebbingei, supplemented with Prunus lusitanica and Ilex crenata 'Glory Gem' in ball form.