There is an old saying that “good things come in threes.”  Supposedly, it stems from an ancient belief that three of something is complete and ideal.  Hence, “third time is the charm” and, should you have the good fortune of finding a Genie, you might be the beneficiary of three wishes!  Even in the world of gardening, arranging plants in groups of three makes them look more natural.  One plant that certainly embodies the beauty of three is the genus of Trillium , as displaye