In the collection orchard of the Kozjanski park, you can see the tree nursery, the meadow orchard, and the Čerček homestead, where more than 100 traditional varieties of apples and pears are planted. The stem orchard is spread over 2.3 ha and is processed according to the principles of organic farming. Each tree within the orchard is marked with the name of the variety (both in Braille). The orchard offers dwellings for beneficial organisms – for insects, nesting, bird feeders, and various studies of fauna and flora, workshops, practical displays, natural and project days.