Daniel Hinkley is a world-renowned plantsman, garden writer, horticulturist, and nurseryman.  He is best known for establishing Heronswood Nursery in Washington state, and for collecting, propagating and naming varieties of plants new to the North American nursery trade.  Mr. Hinkley will appear at Tower Hill Botanic Garden on Saturday, April 16 at 2 pm to speak on New and Exciting Perennials, Shrubs, Vines and Trees for the American Garden.  Tower Hill members $30, non-members $45.  Register online at www.towerhillbg.org, or call 508-869-6111, ext 124.