Press Photo by Tim GilmanRobin Hemmerly waters her flower garden in northeast Bethlehem. “I love my flowers and do them every year,” Hemmerly said. “This is my sanity and joy; it keeps me busy,” added the 641 Washington Avenue resident who lives with her husband Bob. “I do all the floral arrangements and water them almost every day,”she said. Robin is a former New York City resident who came to