- Adam Dimech’s Story of Flowers
- All-America Selections Winning Seeds
- American Hemerocallis Society
- American Hydrangea Society
- BugBios at Insects.org
- BugGuide ID
- Bumblebee.org
- Clematis International
- Clematis.com
- Cornell Living Sculpture
- Cornell Vegetable Varieties for Gardeners
- Cornell Woody Plants Database
- Dave’s Garden
- Earth Worm Digest
- Fine Gardening Mag Online
- Garden Web Forums
- Gardenology.org Plant & Garden Wiki
- Herb Society of America
- Horticulture Mag Online
- Human Flower Project
- Kemper Center Plant Finder, Missouri Botanical Gardens
- MushroomExpert.com
- MyFolia
- Orchid Care
- Paghat’s Garden
- Peony.org ID Utility
- Perennial Plant Assoc. Plants of Year
- Pollinator Partnership
- RHS Award of Garden Merit Plant Finder
- RHS Plant Finder
- The Butterfly Website
- The Pollination Home Page
- The Seed Site, devoted entirely to seeds
- U.S. Plant Hardiness Zones
- Urban Gardens Web
- Weed Identification (Illinois C-FAR)
A noun. A verb. A blog.