The small arboretum features native plants from the north Rocky Mountain region, the plains, and drier areas of Montana. It includes a Xeriscape garden and many established large specimens.
Plants in the arboretum proper include: Acer rubrum, Amelanchier alnifolia, Arctostaphylos uva-ursi, Caragana arboresens, Caragana frutex, Cercocarpus ledifolius, Fraxinus pennsylvanica, Juniperus chinensis, Juniperus communis, Lonicera tartarica, Lonicera x brownii, Malus spp., Pentaphylloides floribunda, Pinus ponderosa, Populus tremula, Rosa rugosa, Sorbus x hybrida, Syringa meyeri, Syringa vulgaris.