Useful Links

American Hemerocallis Society
The American Hemerocallis Society is a member organization that offers a Daylily Journal, an email daylily open forum, and opportunity to attend lectures and meetings, regional newsletters, a slide library, and invitations to exhibit at AHS-accredited local flower shows. 

American Hosta Society The AHS is a non-profit organization that aims to further the development and public interest of Hostas through scientific and educational programs.

American Iris Society The American Iris Society is a noneprofit institution incorporated in 1927 in the County of Philadelpphia, Pennsylvania. The Society exists to promote the culture and improvement of the Iris.

Beltsville Agricultural Research Center Beltsville Agricultural Research Center offers programs through their Nutrition Center, Livestock and Poultry Sciences Institute, and their Plant Sciences Institute.

National Arboretum The mission of the U.S. National Arboretum is to conduct research, provide education, and to conserve and display trees, shrubs, flowers, and other plants to enhance the environment.

National Agriculture Library The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries.

Perennial Plant Association The PPA is a professional trade association that is dedicated to improving the perennial plant industry through education, production, and usage. They offer membership, grant funds, and design awards.

Perry's Perennial Pages Dr. Leonard Perry's web pages, hosted out of the University of Vermont, are full of on-line perennial information, as well as other horticultural information.

Potomac Bonsai Association Established in 1970, PBA's many member clubs stretch from Lancaster, PA, to Ladysmith, VA, and across to the Eastern Shore. We offer a variety of activities which make it both fun and rewarding to learn the techniques of the "only living art form" from our senior members and visiting masters alike. We welcome all ages and skill levels. Come check us out!

Rochester Gardening This web site is meant to encourage the transfer of information relating to the varied interests of gardeners living near Rochester NY. This is accomplished by presenting some material which is local in content, and links to resources found elsewhere on the Internet. Though it is Rochester-based, it offers a lot of other great gardening links.

The Home and Garden Information Center This site is run by the Maryland Cooperative Extension Service, and provides a wide variety of horticultural information particularlly suited to home gardeners in the midatlantic region.

Terra Nova Nurseries Terra Nova Nurseries, Inc. is a wholesale nursery located in Portland, OR. They specialize in the introduction of new perennials from tissue culture.

University of Maryland Cooperative Extension An excellent resource for a wide variety of topics, such as the envorinment, the horticulture industry, the 4-H, farming and much, much more...

The International Clematis Society All you ever wanted to know about the care and feeding of the Queen of Climbers is covered on this site.

Growing For You This site provides pictures, articles and important information on over a thousand different perennials, ornamental grasses, hardy ferns, flowering shrubs, flowering vines and ground cover.

Invasive Notes From time to time, John Peter Thompson will write, hold-forth, comment, and describe life in, near and related to gardening. Like a vine he will meander through many topics. Additionally, he would be delighted to answer questions and comments on his articles, gardening, or Behnke Nurseries. Email him at This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Sustainable Gardening Susan Harris is a Master Gardener and life-long gardener. In her words, “I don't have a horticulture degree and my role here is NOT as the expert. I do keep up with research, news and contrary opinions in both the mainstream media and in the blogosphere on all the subject covered here. (Think there aren't contrary opinions? Head over to GardenRant immediately.) If you know of any information that should be included here,drop me a line.”