The following Web sites are links to regional and national organizations or informational directories related to ecological landscaping topics. We offer these in the hope that they are of interest to our membership and audience. However, a link on the ELA site does not imply the Association’s endorsement or support of any linked site or organization, or of any content that may be found on a linked site.

Please contact our webmaster if you know a website we should include, or if you have any questions or comments about existing links.

Other Ecologically Minded Organizations

American Horticultural Society

Association to Preserve Cape Cod


Boston GreenScene

Boston Natural Areas Association

Center for the Environment

The Conway School

Earth Share – National

Ecosystems Center

Earth Share – New England

Ecological Designers and Engineers Network

Ecological Farming Association

Ecological Society of America

The Evergreen Foundation

Green Roofs


The Institute of Ecosystem Studies

International Assoc. for Landscape Ecology – US Regional

Land’s Sake

Massachusetts Audubon Society

Midwest Ecological Landscape Alliance

National Garden Association

The Nature Conservancy

NOFA Vermont

Northeast Organic Farming Assoc. of Massachusetts

NOFA Organic Land Care

Organic Growers School

The Plant Conservation Alliance

Project Native

Society of Environmental Journalists

Society for Ecological Restoration International

Sustainable Sites Initiative

The Trustees of Reservations

Wild Ones: Native Plants, Natural Landscapes


Soil Science Society of America

UMass Soil Testing Lab


Master Composter

Invasive Plants

Alien Plant Working Group

Invasive Species

The Invasive Plant Atlas of New England

The Invasive Plant Atlas of the US

The Nature Conservancy

National Park Service Plants Conservation Alliance

Plant Conservation Alliance

Native Plants and Seeds

Grow Native Massachusetts

Lady Bird Johnson Wildflower Center Native Plant Database

Massachusetts Natural Heritage Program

Native Plant Center at Westchester Community College

Native Plant Network

New England Botanical Club

New England Wild Flower Society

Plant Conservation Alliance

Project Native

Rhode Island Wild Plant Society

Sustainable Seed Company

Wild Ones: Native Plants, Natural Landscapes

Plant Care (General)


Garden Guide

Natural Resources & Environmental Conservation

New England Landscape Design and History Association

Organic Gardening

The PLANTS National Database

United States National Arboretum – Hardiness Zone Map

University/Extension Services

Conway School of Landscape Design

Cornell University Extension Service

Purdue University – Turfgrass Program

University of California Cooperative Extension

University of Massachusetts Extension Service

University of Minnesota Extension

Yale School of Forestry & Environmental Studies

Professional Landscapers Groups, Guides, & Information

Associated Landscape Contractors of Massachusetts

California Landscape Contractors Association

New England Grows Convention

UMass Extension Green Information

Vermont Nursery and Landscape Association

Garden/Landscape Design

Association of Professional Landscape Designers

Arboriculture (Tree Care)

Certified Tree and Lawn

International Society of Arboriculture (ISA)

Tree Link Urban and Community Forestry

Botanic Gardens and Arboreta

Arnold Arboretum

Mount Auburn Cemetery

The New England Ecological Garden of the University of New Hampshire

Tower Hill Botanic Gardens

Water and Water Sheds

American Water Works Association Consumer Center

California Landscape Contractors Association

The Groundwater Foundation

Massachusetts Audubon Society – Rivers Website

North American Water Garden Society

Organization for the Assabet River

Project Clean Water

Parker-River Watershed

US EPA Surf Your Watershed

US Geological Survey Water Resources of the US



MSPCA Wildlife Help Center

The Massachusetts Audubon Society

National Audubon Society

The National Wildlife Federation

Pest and Disease Issues

Colorado State – Organic Pesticides

The Lyme Disease Resource Center

Massachusetts Introduced Pests Outreach Project

National Pesticide Telecommunication Network

North Carolina University – Center for IPM (design)

Northwest Coalition for Alternatives to Pesticides

Toxic Action Center

Government Agencies

City of Seattle Public Utilities

Louisiana Dept of Environmental Quality – Butterfly gardening

Massachusetts Town Board Information

Missouri Department of Natural Resources

Publications or Resource Sites


Environmental Yellow Pages

Green Alliance

Green Marketplace

Green Pages Online