| Biodynamic Gardening: Information on this method of gardening using mineral preparations and planetary rhythms, and services including workshops and garden design. Based in the UK. |
| Exploratorium: Science Of Gardening: Features articles and videos on several topics, including gardening with nature, carnivorous plants, soils, fruits, and vegetables, propagation, and plant reproduction. |
| Garden Ideas: Articles and advice on a variety of gardening topics. |
| Garden Terms: Gardening dictionary with brief definitions of a large number of terms, optionally arranged by category. |
| Hort.net: Offers a collection of garden reference materials, including a plant gallery and profiles, archives of mailing lists, gardening news, and links. |
| Let's Go Gardening: General gardening site, with versions geared towards US and UK gardeners. Tips and articles, informational resources, links to events, societies, and public gardens, and a forum. |
| LoveToKnow Garden: Short informational articles on gardening topics, vegetables, and ornamental plants, contributed and edited by users. |
| Mimi.hu: Gardening: Provides a directory of biological and horticultural terms, with links to online encyclopedia entries for each term. |
| MyGardenGuide: Offers plant database with photos and summary information, Q&A on various garden topics, and a garden blog. |
| Pioneer Thinking: Gardening Center: Information and tips on outdoor and indoor gardening. Many articles grouped by topic. |
| Yardener.com: Lawn and garden resources for homeowners whose garden is not their hobby. Includes information and care data for many plants, shrubs, and trees, and dealing with pests and problems. |
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