Treewise: where cutting edge science and technology meets practical field experience and a true commitment to being 100% organic. For over 20 years we’ve been working closely with landscape designers, planners and architects to establish sustainable systems that support life in the landscape. From the tiniest microbes like bacteria, to butterflies, flowering plants, and mature trees, we are committed to the holistic care of your environment. Call us for the life of your landscape 631.324.4239.

We’re leaders in:
  • New Plant Establishment
  • Mature Tree Restoration and Care
  • Ongoing Tree, Lawn and Plant Healthcare Management
  • Organic Tree Care

Specializing in programs for:
  • Estates and Large Properties
  • University and Business Campuses
  • New Construction (Commercial & Residential)
  • Municipalities

Serving The Hamptons, The North Shore of Long Island & New York City