Explore four private gardens in Millbrook, Poughkeepsie, and Stanfordville, open for self-guided tours and plant sales to benefit the Garden Conservancy. Highlights include a Japanese-influenced garden, an allée of hornbeams, a collection of more than 250 hosta cultivars, and large arches covered with roses. No reservations required; rain or shine. Begin at the Dappled Berms or see website for additional locations.