The apple collection has a special status since it is the only field collection of CGN. The collection is maintained as trees in an orchard at the Experimental Station Randwijk. Requests for scions can be made via the CGN website. The collection mainly consists of old Dutch varieties, material from Dutch pomological organizations and from the former research institutes of Wageningen University & Research. The first old apple varieties were already collected in 1976 in an effort to conserve varieties which were no longer used in commercial production.