Greenhouses and Nurseries Trade Associations

AmericanHort

The national trade association for the U.S. green industry, uniting growers, retailers, breeders, suppliers, landscapers, educators and manufacturers for advocacy, education (e.g., Cultivate), and industry networking.

https://americanhort.org Membership: 16,500

American Public Gardens Association (APGA)

The primary professional network for public gardens in North America, connecting nearly 600 garden institutions and 11,000+ professionals with benchmarking, conferences, and resources.

https://www.publicgardens.org Membership: 600

British Columbia Landscape & Nursery Association (BCLNA)

Provincial trade association representing British Columbia’s landscapers, nursery and greenhouse growers, garden centres and suppliers; provides advocacy, professional development, and buyer’s guides.

https://bclna.com Membership: 400

Canadian Nursery Landscape Association (CNLA)

Canada’s national federation of nine provincial associations representing nursery growers, garden centres, landscape professionals, and suppliers; delivers certification, standards (e.g., CLS), advocacy and market development.

https://cnla.ca Membership: 4,300

Colorado Nursery & Greenhouse Association (CNGA)

Statewide association serving greenhouse and nursery growers, garden centers, suppliers, and institutions with education, certification, legislative advocacy, and a member directory.

https://www.coloradonga.org Membership: 300

Florida Nursery, Growers & Landscape Association (FNGLA)

The nation’s largest state nursery and landscape association; a vertically integrated network supporting Florida’s environmental horticulture through advocacy, certification, trade shows (TPIE, The Landscape Show), and education.

https://www.fngla.org Membership: 1,500

Garden Centre Association (UK)

UK’s Garden Centre Association for retail garden centres; provides inspections, benchmarking, training, and networking for member centres across the United Kingdom.

https://gca.org.uk Membership: 210

Hawaii Floriculture and Nursery Association (HFNA)

Statewide marketing and trade organization for Hawaii’s floriculture and nursery sector, uniting cut flower, foliage, potted plant and orchid producers for promotion, education, logistics and advocacy.

https://hawaiifloriculture.org Membership: 400

Landscape Ontario Horticultural Trades Association (LO)

Ontario’s provincial horticultural trades association serving 10 sectors (growers, retail garden centres, landscape, irrigation, interiorscape, etc.) with advocacy, training, events and cost-savings programs.

https://landscapeontario.com Membership: 2,899

Maryland Nursery, Landscape and Greenhouse Association (MNLGA)

State association for Maryland’s nursery, landscape, and greenhouse industry; delivers advocacy (via MaGIC), Certified Professional Horticulturist program, education, and member services.

https://mnlga.org Membership: 300

Michigan Nursery & Landscape Association (MNLA)

Michigan’s statewide green industry trade association (est. 1922) serving growers, garden centers, greenhouse producers, and landscape firms with advocacy, certification, GLTE trade show, and education.

https://mnla.org Membership: 1,000

New Jersey Nursery & Landscape Association (NJNLA)

New Jersey’s statewide nursery and landscape trade association bringing nurseries, retailers, and landscape professionals together for advocacy, education, and promotion.

https://www.njnla.org Membership: 380

New York State Nursery & Landscape Association (NYSNLA)

Statewide professional trade association advancing New York’s nursery and landscape industries through advocacy, education, regional chapters, and the CNLP credential.

https://www.nysnla.com Membership: 700

Ohio Green Industry Association (OGIA)

Represents Ohio’s nursery growers, garden centers, landscape contractors, arborists and allied suppliers; offers advocacy, education, networking and industry recognition programs.

https://ogia.org Membership: 1,300

Oregon Association of Nurseries (OAN)

Trade association and primary voice for Oregon’s nursery and greenhouse producers, resellers, retailers, and suppliers; provides government relations, Farwest Show, and member services.

https://www.oan.org Membership: 700

Pennsylvania Landscape & Nursery Association (PLNA)

Pennsylvania’s leading green industry association representing landscape contractors, garden centers, wholesale nurseries and greenhouses with advocacy, education, certification and a buyers guide.

https://www.plna.com Membership: 750

Society of American Florists (SAF)

The national U.S. association for the floral industry connecting retailers, growers, wholesalers/importers and suppliers; provides advocacy, market intelligence, events (Annual Convention), and certifications (AAF, PFCI).

https://safnow.org Membership: 7,000

Tennessee Nursery & Landscape Association (TNLA - Tennessee)

Statewide trade organization (est. 1905) for Tennessee’s nursery, landscape, irrigation and lawn care businesses; produces TNGRO trade show, scholarships, and industry advocacy.

https://tnla.com Membership: 300

Texas Nursery & Landscape Association (TNLA - Texas)

Texas’ statewide nursery and landscape trade association delivering advocacy, certification (TCNP/TCLP), education, and the Nursery/Landscape EXPO and Working for You magazine.

https://www.tnlaonline.org Membership: 2,000

National Greenhouse Manufacturers Association (NGMA)

Industry group of greenhouse structure and component manufacturers and suppliers focused on codes, standards, education, and networking for protected horticulture infrastructure.

https://ngma.com Membership: 65