The Tree Conservancy Arboretum is Growing in Bruce Park Opening Ceremony and Tree Walk Sunday, May21st, 2017 2:00 PM - 4:00PM Please join us for a reception as we celebrate the expansion of our Arboretum Initiative in Bruce Park. Refreshments and a tour of the new Arboretum extension with Town Tree Warden Bruce Spaman. The growing Bruce Park Arboretum is the first phase of the Tree Conservancy's vision for a town wide Arboretum enhancing all town parks with suitable plantings.