Links to private companies or products are provided as a public service and do not constitute an endorsement by the University of Maryland or the Master Gardeners of Carroll County, MD.
- American Horticultural Society Those who wish to join not only get the magazine but also can participate in their free seed exchange.
- Audubon Society of Central Maryland Bird and native plant information.
- Carroll County Forest Conservancy District Board For Carroll Countians wishing to manage or improve use of their privately owned wooded property.
- Chicago Botanic Garden
- Drought Monitor
- Grow It Eat It
- Grow It Eat It Blog
- Home and Garden Information Center
- Gardens at the University of Georgia
- Maryland Native Plant Society This site lists all sorts of native plant information.
- Mason-Dixon Chapter of the American Rhododendron Society
- New England Wildflower Society The only east-coast source for buying small quantities of native plant seeds (as opposed to enough seed to sow a meadow).
- North American Butterfly Association
- Perennial Plant Association
- Seed Savers Exchange For individuals that like to grow heirloom plants from seed.
- The Garden Conservancy For those seeking information about exceptional gardens to visit.
- University of Maryland Extension Links and Resources
- U.S. Fish and Wildlife Service This site links to the publication Native Plants for Wildlife Habitat and Conservation Landscaping: Chesapeake Bay Watershed