Pouring rain did not deter a small group of visitors from touring the quarry garden at Winterthur, the former estate of Henry Frances DuPont. Beneath a broad umbrella and underscored by a staccato of raindrops, Jim Pirhalla, horticulturist in charge of the quarry garden, described how “HF” at the age of about 81 in 1961 decided to convert what had been a working quarry in earlier times into an ornamental garden. Stone was brought in and placed by crane to create a terrace effect against the quarry wall backdrop for pocket plantings. On our early May visit, rose-colored primula japonica in the quarry basin was blossoming profusely- peaking, Pirhalla said. He explained how water channels in the quarry bottom were created because a bog-like environment would not be suitable for such plants. The channels had to be dug out again in the 1990s after silting up. Some employees who had been with Winterthur a very long time related to Pirhalla that they had drunk quarry water in days long past. Fed by a natural spring and water funneling into the quarry from the fields, the channel water flows into Wilson run (known at Winterthur as “Clenny” run for the farmer who once worked the area) before joining the Brandywine Creek. The quarry is also an oasis for orioles, catbirds, robins, warblers, wrens and all sorts of birds, some migrating through, and even in winter, as the quarry area never freezes up; as Pirhalla related this, birdsong accompanied him. Watch video of quarry garden tour here.