Visit the private garden of Margaret Roach in Copake Falls, open for self-guided tours and a plant sale to benefit the Garden Conservancy and Friends of Taconic State Park. No reservations required; rain or shine. The garden, about thirty years of age, reflects an obsession with plants, particularly those with good foliage or of interest to wildlife, and informal mixed borders, shrubberies, frog-filled water gardens, and container groupings cover the steep 2.33-acre hillside.