Cass Turnbull

Cass Turnbull was an American arborist and author who founded PlantAmnesty, a non-profit organization dedicated to educating the public about proper tree pruning techniques and opposing harmful practices like tree topping. She was also the author of 'Cass Turnbull's Guide to Pruning' and passed away from a fatal heart attack on January 26, 2022, while vacationing in Hawaii.