As the weather warms in May, and neighbors start taking constitutionals around the neighborhood again, we enjoy the fragrance of the flowering trees – apple, cherry, magnolia – and the spring colors of the flowering hedges – lilac, forsythia, and rhododendron. True, the flowers don’t last long… so we enjoy them while we can. As we watch, the buds grow fatter on the branches, as bursting leaves prepare to follow the spring blossoms. Once the early petals are shed, these bushes and trees will be covered with leaves, as the magic of photosynthesis takes over and enables our neighborhood greenery...