- Maintain plants and seeds inventory, discuss gardening, and trade seeds and plants with fellow gardeners. Many features are only available to paying members, some also to the general public.
- A web front to several usenet newsgroups, covering general, regional, and water gardening topics. Threads are displayed forum-style. Posting requires registering with the site.
- Community of gardeners offering a wide range of resources. Forums on a large variety of general and specialized topics, glossary of botanical terms, seed exchange, and plant directory.
- Online community focused on gardening with a simplified-living bent. Forums, a few articles, links to extension services, and printable journals and logs.
- Canadian gardening resource site by editor and Master Gardener, Donna Dawson. Includes a member's area, news, articles, book reviews, clubs, suppliers, pictures and links.
- The treehouse forum at this group features friendly discussion of various gardening topics. Also includes links to worthwhile gardening resources, and members' photo albums. Must join group (free) to read and participate.
- Friendly meeting place for home gardeners, mostly from the Northern half of the US. Photo galleries, message board, and lots of links to gardening resources.
- Information resources, e-zine, forums, and links of interest to Northern gardeners and landscapers (USDA hardiness zones 1-5). Includes a landscape plant search, articles, climatic data, and business locators.
- This site focuses on daylilies, providing articles on their cultivation and hybridization, as well as an database. Also provides discussions of some other flowers and vegetables. Most of the action is in the many forums.
- Worldwide community chats via an e-mail mailing list on a wide variety of topics including gardening. Archives online available to members of the list.