100. use only native plants when landscaping
in consultation with organizations like Hudsonia, Ltd., the Nature Conservancy and the Department of Environmental Conservation, develop a program to use only native, non-invasive species when planting on publicly owned land like parks, medians and other public spaces.
100 Ideas for New Paltz 
Yes use mostly natives but don’t rule out non-natives. Permaculture folks will tell you its not non-natives… its invasives thats the problem. Non-natives can can be great for building and remediating soil and creating food. Also here is idea 101. Get a permaculture designer to look at town and village property and develop real sustainable land practices. We are still mowing too much and not building soil or filtering water at capacity. I know a number of folks who’d be willing to do some preliminary consulting for free if we start working towards making New Paltz the small town Permaculture exemplar.