| 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. |
| ePlants | | Searchable database containing the results of Chicago Botanic Garden plant trials. Each entry contains a rating, photos, and cultural information. |
| Findmeplants.com | | Garden plant finder. Search by specifiying 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. |
| Foliage Plants Database | | Searchable database with basic information and some photographs of plants grown primarily for their foliage. Japanese and English. |
| 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. |
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