The Spier's Arboretum has a secure future with the prospect of additional species reaching maturity, such as aspen, toffee apple ( katsura ) tree, handkerchief tree, Wellingtonia, Wollemi pine, holm oak, walnut, fastigiate beech, sessile oak, monkey puzzle, and juniper that will give a total of around fifty tree species in the arboretum.
