The primary goal of ReTree Nebraska is to properly plant 1 million high quality trees in Nebraska communities. Everyone in Nebraska is encouraged to help, and autumn is a great time to plant a tree. See the ReTree Nebraska website for more information. Be sure to report any trees you plant at the same site, so they can count your planting toward the one million.
Here is Lexington's Tree Board's recommended trees that do well in Lexington's environment:
American Elm (Valley Forge cultivar)
London Planetree (Sycamore)