| About.com: Poisonous Plants for Cats, Dogs, Humans: Article listing a number of poisonous plants, with links to further information about those plants. |
| All America Selections Winners: Showcases new varieties of flowers, vegetables, and plants for garden performance. |
| BackyardGardener.com: Garden Guides on Plants: Starting point for information on (types of) plants, with summary information for many species and varieties. |
| Cal's Plant of the Week: Features a new plant every week, with photo, description, and cultural information. Previously featured plants can be selected by botanical or common name. Focus is on plants for greenhouse culture. |
| Dave's Garden: PlantFiles: Database with over 80,000 plants with cultivation information and pictures supplied by member gardeners. |
| DenverPlants.com: This resource for gardeners in the Denver metro area includes a sizeable database of plants with photos and cultural information. |
| Desert-Tropicals.com: Features searchable database of thousands of plants, with basic information and often photos. Includes many succulents, herbs, and tropical fruit trees. |
| Dinosaur Garden Plants: Describes plants that lived during the age of the dinosaurs, with brief information, lists, and links to other resources for plants of the mesozoic era. |
| Echo: Fruiting Trees, Shrubs, and Herbaceous Plants: Features cultural information, uses, handling tips, and links for an extensive list of fruits and vegetables. |
| ePlants: Searchable database containing the results of Chicago Botanic Garden plant trials. Each entry contains a rating, photos, and cultural information. |
| Findmeplants.co.uk: Garden plant finder. Searchable by garden conditions and design requirements such as flower color, size and growth habit. Search results include plant photo and summary information. |
| FloraFinder.com: Offers links to gardening websites arranged by plant type, with a brief description of each site. |
| Floridata: Features hundreds of plant portraits, each illustrated with several photos, documenting the garden uses and cultural requirements of each species or cultivar. |
| Flowers of India: Collection of hundreds of plant photos with brief descriptions. Each of the plants grows in India, but both natives and non-natives are featured. |
| Foliage Plants Database: Searchable database with basic information and some photographs of plants grown primarily for their foliage. Japanese and English. |
| Fruits and Vegetables: Extensive set of fact sheets and links from the University of Florida. |
| Garden Flowers: Descriptions of different types of flowers suitable for small gardens. Includes Phlox, Nasturtium, Lobelia Carnation, Zinnia, Alyssum, Begonia, and Dahlia. |
| Gardening Passion: Weblog-style source of information on various garden plants, fruits, and vegetables. It is the English-language companion to the French aujardin.info. |
| Gardenline: Guide to growing and caring for houseplants, vegetables, trees and shrubs. Also features common pests and a miscellaneous section. From the University of Saskatchewan Extension. |
| Gardenweb: Name That Plant: Forum that allows users to upload images of plants that they are trying to identify. |
| Horticopia On-line Plant Information: Extensive directory of plants, categorized by genus, includes summary cultural information and small photograph for each plant. |
| HortiPlex: Horticultural database with over 100,000 species and cultivars. Comments, ratings, and photos for many varieties supplied by members of the Gardenweb community. |
| Illinois' Best Plants: Chicago Botanic Garden provides a database of recommended plants for Illinois gardens, from perennials to trees, with photos and information on their culture and use. |
| New Jersey Weed Gallery: Database of weeds, accessible by common and botanical names and by a thumbnail gallery. Summary information and photos are provided for each weed. |
| PlantBuzz: Gardener Mark McDonough presents horticultural musings and illustrated plant studies, with particular emphasis on alliums and other bulbs for rock gardens. |
| Plants For A Future: Resource centre for rare and unusual plants, particularly those which have edible, medicinal or other uses. Offers a plant database, and various articles on gardening, perennials, and habitats. |
| Plants National Database: Online USDA database of botanical information, images, and links on plants in the USA, including crops and invasives. Search by name, geographic distribution, or other characteristics. |
| Plants Toxic to Animals: Resources about toxic plants from the Veterinary Medicine Library. |
| PlantZAfrica: Extensive information about plants native to southern Africa, including hundreds of alphabetically arranged plant portraits, by the National Botanical Institute of South Africa. |
| Shady Character: Mark shares photos and descriptions with personal experiences growing a large number of shade plants, both perennials and woody specimens. |
| Shiraz Web Publications UK: Gardening resource site with an extensive plant directory featuring photos and cultural information. |
| SunnyGardens.com: Plant encyclopedia featuring photos and short descriptions of annuals, perennials, shrubs, and trees. |
| The Families of Flowering Plants: Offers descriptions, illustrations, and identification retrieval. |
| The Garden of Paghat the Ratgirl: Pacific Northwest gardener presents essays for hundreds of species growing in her garden, with personal notes, history, cultural information, and photos for each. |
| Tiscali Gardening: A South African flower, plant and gardening portal with searchable plant database, photographs and information. |
| Translat: Translation program for botanical latin. |
| Virtual Plant Tags: Database of detailed descriptions and growing tips for thousands of plants, including many not commonly grown. Profiles include cultural information, assessment of landscape value, and photos for most. |
| WeedAlert.com: Offers a weed listing for the United States regions, primarily weeds occurring in lawns. |
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