The Arboretum's 900 acres of natural areas include the 100-acre Schulenberg Prairie, woodlands, savannas, six lakes, four marshes and wetlands, a brook, and the East Branch of the DuPage River. Volunteers help maintain all of these areas. Activities range from removing invasive plants and cutting brush to collecting and sowing seeds and planting plugs and saplings.
Woodlands and Savannas
Restoration work includes planting plugs, wading or using boats to weed aquatic plants, algae control, and weeding plants along the banks of Meadow Lake or other lakes in the Arboretum.
Marshes and Wetlands