"All discipline for the moment, seems not to be joyful, but sorrowful; yet to those who have been trained by it, afterwards it yields the peaceful
fruit of righteousness."
Trees add a beauty to the landscape that no other type of plant can duplicate. They add height and lush color (more often than not). While on a high concrete overpass in Portland, Oregon I remember being unable to see most of the city’s buildings because they were hidden among the “canopy” of the myriad trees.