USEFUL RESOURCES
Cary Institute of Ecosystem Studies
Cornell Cooperative Extension Gardening Resources
Cornell University Department of Horticulture
Cornell University Woody Plants Database
Plant Hardiness Zones (Wikipedia)
US Dept. of Agriculture Natural Resources Conservation Service
Northeast Aquatic: Ponds and How to Care for Them
The Sustainable Sites Initiative
Bartlett Tree Experts
Eric Vinje at Planetnatural
Tree Conservation

GARDENS &  ORGANIZATIONS
Old Westbury Gardens
The Garden Conservancy
Amenia Garden Club
Innisfree Garden
Mad Gardeners 
Garden History Society
Grounds for Sculpture
The Cultural Landscape Foundation
Wethersfield Garden
  
ARTISTS
Guy Wolff Pottery
Nigel Williams Sculpture
Mike Bigland Sculpture
Bob Keating Sculpture
Bob Keating Plant Supports
Battle Hill Forge
Peter Catchpole ironwork