Berkshire Botanical Garden will celebrate the arrival of fall with its annual Harvest Festival on Saturday and Sunday, Oct. 10–11, from 10 a.m. to 5 p.m. each day. The two-day celebration brings together families, artists, farmers, gardeners, musicians and community members for a weekend honoring the Berkshires’ agricultural heritage and the beauty of the natural world. Admission is free for children under 12.