Landscape Design

ASLA promotes the landscape architecture profession, and advances the practice through advocacy, education, communication, and fellowship.

The goals of the APLD are to advance landscape design as an independent profession and to promote the recognition of landscape designers as professionals.

The Massachusetts Nursery & Landscape Association is a volunteer, nonprofit organization whose members are involved in the production, sale, and handling of nursery stock in Massachusetts.

The USDA's Forest Service offer this important means of 'facilitating restoration of species and ecosystems.' Use this guide to find out how to open and operate in the tropics. The basic operational information doesn't change from environment to environment.

Invasive and Exotic Species of North America
From the site:
"Any species, including its seeds, eggs, spores, or other biological material capable of propagating that species, that is not native to that ecosystem; and whose introduction does or is likely to cause economic or environmental harm or harm to human health."

From the site:
The Connecticut Invasive Plant Working Group (CIWPG) ..collaborates and shares information about invasive plant issues affecting Connecticut and the region. The group includes federal, state, and town agency staff, researchers, nursery growers, educators, master gardeners, community members, and interested citizens.

88 page guide from the feds on Northeastern Invasive Species. You'll need acrobat reader to read it online.
http://get.adobe.com/reader/

If you are first (or almost first) on the scene, this is for YOU!

UMass Extension Service's guide to plant diseases in New England.

The Trust for Public Land (TPL) is a national, nonprofit, land conservation organization that conserves land for people to enjoy as parks, community gardens, historic sites, rural lands, and other natural places.

Companion site for the magazine Organic Gardener. Contains many free resources including blog posts and how-to guides. Issues of the magazine are available for purchase on the website.

This site provides information on scores of EPA programs supporting sustainability that focus on the Built Environment; Water, Ecosystems & Agriculture; Energy; and Materials & Toxics.

The aim of this site is to assemble and disseminate information that will encourage the cultivation, conservation and preservation of wildflowers and other native flora throughout North America.

The Lawn Institute was created as a not-for-profit corporation to assist in and encourage through research and education the improvement of lawns and sports turf.

The Turfgrass Information Center (TIC), a specialized unit at the Michigan State University Libraries (MSU), contains the most comprehensive publicly available collection of turfgrass educational materials in the world.