Summerhill Landscapes is a full-service landscape company in Sag Harbor, LI. Founded in 1993 by Declan Blackmore, a native Irishman, this firm has experience, passion and a fantastic aesthetic. They are meticulous about details and have a through understanding of the palette of plants that do well on the East end. We collaborated on a residence in Water Mill and it was a fantastic experience. They also maintain gardens throughout the region, and their standards are impeccable.