Vegetation

Mount Arapiles shares the climatic features of the northern part of the state and geological characteristics more common to the south.

Most of the Arapiles plateau is covered by low, open forest of Long-leaved Box in association with some Buloke and White Cypress Pine. Below the plateau, Yellow Gum woodland is found.

Throughout the park, wildflowers present a colourful display during spring. About 500 species of native plants occur in the park, including several such as Rock Wattle and Skeleton Fork-fern which are rare or endangered.

Animals

Mount Arapiles-Tooan State Park is a habitat for a variety of mammals and invertebrates.

A total of 109 bird species has been recorded. Notable species include the Peregrine Falcon, Rainbow Bee Eater, Gilbert Whistler and Southern Scrub Robin.

Kangaroos may be seen grazing the lower slopes and possums observed at night foraging in the tree canopies.

During the summer, Shingle Back Lizards and Eastern Brown Snakes soak up the warm sun.