Native plants do not require fertilizers and require fewer pesticides than lawns. Native plants require less water than lawns and help prevent erosion. The deep root systems of many native Midwestern plants increase the soil's capacity to store water.
Native plants are those that occur naturally in a region in which they evolved. They are the ecological basis upon which life depends, including birds and people. Without them and the insects that co-evolved with them, local birds cannot survive. For example, research by the entomologist Doug Tallamy has shown that native oak trees support over 500 species of caterpillars whereas ginkgos, a commonly planted landscape tree from Asia, host only 5 species of caterpillars. When it takes over 6,000 caterpillars to raise one brood of chickadees, that is a significant difference.
