Helen Bartlett is the horticulturist for Evening Island, which was designed in the New American Garden style of landscape design, featuring five acres of hillside, woodland, and meadow gardens, surrounded by lakes. She has a bachelor's degree in environmental studies from Knox College. Bartlett joined the Garden in 2013 as a seasonal employee on the aquatics team. The following year, she became a seasonal assistant horticulturist on the Green Roof and the Evaluation Gardens. Bartlett then was assistant horticulturist for the Graham Bulb Garden, Aquatic Garden, and Viburnum Walk. She has been fascinated with the natural world since childhood, when she spent much of her time outdoors.