United States' Center for daffodil information. This site includes regional societies, FAQs, events calendar, growing and showing advice, show results, and many beautiful photos of prized daffodils

One of the oldest gardening organizations in the country. Dedicated to educating and inspiring people of all ages to become successful and environmentally responsible gardeners.

Denver Master Gardeners provide gardening articles and information on Flowers & Gardening and more. We provide a glossary of gardening terms, monthly tips and insect alerts, average weather statistics, CSU fact sheets, community resources, and links.

Homepage of the HPS-most active peony group in the US. Newsletter, tours, sales and auction. Interactive, Q & A. Excellent resources.

This site is done by a group of volunteers to educate others on the wonderful world of water gardening. We have pond tour pictures and various articles.

A site set up by the gardeners themselves to relax and enjoying all aspects of gardening. UK built but with a worldwide membership it is a highly interactive site with a live chat room, forums, photo albums, weather sites, news boards and lots more.

Educational Charity connected with Tatton Park estate, Knutsford, England and the forty acre Quinta Arboretum at Swettenham, England

The German Garden Society similar to the Royal Horticultural Society of GB

Focused on the implementation of progressive gardening techniques into the mainstream gardening community via trade representation and education, the PGTA is a non-profit trade association for retailers, distributors, and manufacturers of environmentally friendly gardening products with a special interest placed on water-wise and organic applications for home gardening markets.