Garden Centers Trade Associations

America in Bloom

Nonprofit beautification network that helps towns, cities, campuses and business districts use plants to drive economic vitality and quality of life; more than 360 communities have participated in its National Awards Program.

https://americainbloom.org/ Membership: 360

AmericanHort

The leading U.S. green-industry association connecting growers, garden retailers, landscapers, suppliers and researchers through advocacy, education and the Cultivate trade show; supports nearly 16,000 member and affiliated businesses.

https://www.americanhort.org/ Membership: 16,000

Arizona Nursery Association

Arizona’s statewide green‑industry trade group serving growers, retail garden centers and suppliers with advocacy, education and networking.

https://azna.org/ Membership: 260

Canadian Nursery Landscape Association (CNLA)

Canada’s national federation for the nursery and landscape sector, representing growers, suppliers and independent garden centres across nine provincial associations.

https://cnla.ca/ Membership: 4,600

Colorado Nursery & Greenhouse Association (CNGA)

Trade association for greenhouse and nursery growers, retail garden centers and suppliers in Colorado and surrounding states; offers education, certification and advocacy.

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

Florida Nursery, Growers & Landscape Association (FNGLA)

The nation’s largest state nursery and landscape association, uniting growers, landscapers and retail garden centers in Florida with training, certifications and advocacy.

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

The Garden Center Group

Buying and benchmarking cooperative for independent garden retailers in North America that shares best practices, financial KPIs and vendor programs.

https://www.thegardencentergroup.com/ Membership: 140

Garden Centers of America (GCA)

U.S. association focused solely on independent retail garden centers, providing education, tours and peer networking.

https://www.lawnandgardendirectory.org/store/m/3578-Garden-Centers-of-America.aspx Membership: 144

Garden Centre Association (UK)

UK association for retail garden centres with standards-based membership, annual inspections and staff training (GROW).

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

Horticultural Trades Association (HTA, UK)

The primary UK trade body for garden retailers, growers, landscapers and suppliers; provides policy representation, market development and the National Garden Gift Card scheme.

https://hta.org.uk/ Membership: 1,500

International Garden Centre Association (IGCA)

Global umbrella association that links national garden-centre groups and independent retailers for idea exchange and an annual congress in 20+ countries.

https://www.intgardencentre.org/ Membership: 20

Landscape Ontario Horticultural Trades Association

Ontario’s provincial horticultural trades association serving garden retailers, growers, landscapers and suppliers with training, events and advocacy.

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

Master Nursery Garden Centers

Member‑owned cooperative of independent garden centers across North America offering private‑label products, vendor programs and marketing support.

https://masternursery.com/ Membership: 575

Michigan Nursery & Landscape Association (MNLA – Michigan)

Michigan’s statewide green‑industry association representing garden centers, growers, landscapers and allied firms with advocacy and education.

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

Minnesota Nursery & Landscape Association (MNLA – Minnesota)

Minnesota’s oldest and largest horticultural trade association representing garden centers, growers, landscapers and allied suppliers.

https://www.mnla.biz/ Membership: 900

New York State Nursery & Landscape Association (NYSNLA)

Statewide professional trade association uniting New York’s nurseries, garden centers, landscapers and suppliers; administers the CNLP credential.

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

Ohio Green Industry Association (OGIA)

Ohio’s cross‑segment green‑industry association representing nurseries, garden centers, landscape firms and suppliers with advocacy and workforce programs.

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

Oregon Association of Nurseries (OAN)

Oregon’s nursery and greenhouse trade association representing growers, re‑sellers, retailers and suppliers; organizer of the Farwest Show.

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

Pennsylvania Landscape & Nursery Association (PLNA)

Pennsylvania’s statewide trade association for garden centers, nurseries, landscapers and allied businesses; provides certifications and professional development.

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

Texas Nursery & Landscape Association (TNLA)

Texas’s statewide green‑industry association representing growers, landscapers, retail garden centers and suppliers with advocacy, education and certification.

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