Florida Nurserymen and Growers Association
- Representing state environmental horticulture industry. History, membership, consumer information including gardening tips and links to member companies.
- http://www.fngla.org

Texas Nursery & Landscape Association
- Serves the gardening, landscaping, nursery public, and professionals.
- http://www.txnla.org/

Minnesota Nursery and Landscape Association
- Member businesses include garden centers, landscape contractors and designers, tree and flower growers, and lawn, tree, and garden services. Member directory, and information about events and publications.
- http://www.mnla.biz/

Oregon Association of Nurseries
- Trade association representing nursery stock producers, retailers, landscapers and related companies. Information about membership, events, and publications, and a member directory.
- http://www.oan.org/

Washington State Nursery and Landscape Association
- Organization serving, promoting, representing, and educating the state's horticultural community. Member listing, plant sourcing guide, and information about events and education.
- http://www.wsnla.org/

Perennial Plant Association
- Trade association dedicated to improving the perennial plant industry.
- http://www.perennialplant.org/

Louisiana Nursery and Landscape Association
- Professional organization representing Louisiana's green industry. Member firms include wholesale nursery crop producers, landscape contractors, retail garden centers, arborists, landscape architects, county agents, sod growers, and arborists.
- http://www.lnla.org/

The Design Network
- An organization for women in Northeast Ohio who are affiliated with landscape design and associated green industries through their occupations. Member listing, projects and programs.
- http://www.thedesignnetwork.org/

Utah Nursery and Landscape Association
- Organization whose chapters include irrigation contractors, turf producers, greenhouse growers, and garden centers. Includes news, member listing, and bylaws.
- http://www.utahgreen.org/

American Nursery and Landscape Association
- Provides education and training, research, public relations, and representation for its members. Includes membership details, industry description, event calendar, publications, and details of political involvement.
- http://www.anla.org/

Connecticut Flowers and Plants
- Collaborative site of the nonprofit trade associations representing Connecticut's florists, greenhouse growers, nurseries, garden centers and landscapers. Provides events calendar, industry bulletin board and searchable database of providers in the state.
- http://www.flowersplantsinct.com

Tennessee Nursery and Landscape Association, Inc.
- Trade association for the state's nurserymen, landscapers, and related businesses. Includes certification information, member directory, announcements of upcoming events, and species database to identify plant suppliers.
- http://www.tnla.com/

Specialty Nursery Association of Western Washington
- Online version of the association's guide, providing information on nurseries organized by types of plants and services offered.
- http://www.specialtynurseries.org/

Southern Nursery Association
- This 100+ year-old trade association has assembled a great resource for horticulture in the 16 southeastern states of the U.S. It includes interactive searches of current members or exhibitors and their products, and over 5,000 pages of horticultural rese
- http://www.sna.org/

North Carolina Association of Nurserymen
- Nursery organization of retailers, wholesalers, growers, suppliers, and educators interested in the welfare of the green industry.
- http://www.ncan.com/

Mississippi Nursery and Landscape Association
- Information about programs, scholarships, member listing, and membership application.
- http://www.msnla.org/

Massachusetts Flower Growers' Association
- Non-profit organization representing the state's commercial growers in areas of legislation, education, and industry promotion. Includes membership directory and lists programs and events.
- http://www.massflowergrowers.com/

Landscape Association of North Carolina
- Promoting professionalism through education and communication to the landscape industry.
- http://www.nclandscape.org/

Johnson County Nurserymen Association
- Association for members of the green industry who produce trees, shrubs, perennials, and ornamentals.
- http://www.jcna.org/