Take your mother for a turn around the Mason Farm Biological Reserve's "old farm trail," which travels through some 260 years of cultural and natural history. Naturalist Ed Harrison points out wildflowers and discuss how the Garden's intense management of both field and forest benefits local biological diversity conservation. About 2.5 miles in length, the hike includes a short off-trail foray into the old-growth Shagbark Hickory forest. Wear sturdy hiking footwear and bring a walking stick, insect repellant and water. Meeting place will be confirmed at registration. Fee $15 ($12 NCBG members). Preregistration required. See the website to register online.