The Pioneers' Arboretum is a living catalogue of just some of the trees found in W.A.
In 1979 the Toodyay Naturalist's Club planted an arboretum. The planting is mainly of the Western Australian eucalyptus and commemorates the pioneers of the district. Planting was carried out by club members in June 1979.
Further plantings were made in 1988 to commemorate the Bicentenary of Australia.
More plantings happened the following year and a catalogue was produced in 1992.
12 Hamersley Street, Toodyay