The professional growing industry touches millions of lives, yet most people can’t name the organizations that shape it. Understanding the people and organizations behind the professional growing industry helps growers, suppliers, and educators make smarter decisions about careers, partnerships, and investments.
Introduction
The professional growing industry is one of the most complex and interconnected sectors in American agriculture. It spans commercial greenhouse operations, nursery production, floriculture, sod farming, and specialty crops, all supported by a dense network of researchers, associations, employers, and government agencies.
Knowing who holds influence in this space matters for anyone building a career or business in horticulture. The people and organizations behind the professional growing industry set standards, fund research, shape workforce policy, and determine which growing media and production methods become mainstream.
Sun Gro® Horticulture operates within this ecosystem as The Growing Media Company, producing science-driven growing media used by professional growers across North America. Understanding the broader industry landscape helps growers connect their daily production decisions to the larger forces shaping the field.
What the Professional Growing Industry Actually Means
The professional growing industry is a $18.3 billion sector in the United States alone, far larger than most people realize. According to USDA NASS, those sales were generated across 23,060 operations in 2024, covering greenhouse crops, nursery plants, floriculture, sod, and specialty crops.
The industry’s scope extends well beyond production numbers:
- Economic contribution: The broader horticulture industry supports 2.95 million jobs and contributes $520 billion annually to the U.S. economy, according to AmericanHort
- Ownership structure: Family- or individually-owned operations make up 56% of all operations, per USDA NASS
- Corporate concentration: Corporate-owned operations account for 63% of total U.S. horticultural sales despite representing a minority of all operations
- Top categories: Nursery stock, annual bedding plants, and sod combined for over $9.7 billion in sales in 2024
- Growing media relevance: Peat moss and peat-based substrates remain foundational inputs across greenhouse and nursery production at scale
The People Who Drive Industry Growth
The people who drive industry growth are economists, substrate scientists, marketing specialists, and production researchers who influence everything from input selection to business strategy. Individual practitioners and researchers shape how the industry evolves, and their work determines which practices, products, and policies define commercial growing at scale.
Practitioners and Specialists
Substrate science is one of the most active research areas in professional horticulture today. Dr. Jeb Fields at UF/IFAS leads the Beyond Peat project and the national S3 (Soilless Substrate Science) team, developing peat alternatives and more sustainable growing media for commercial operations.
Brian E. Jackson at North Carolina State University directs the Horticultural Substrates Laboratory and has presented at Cultivate on innovations in alternative soilless growing media, covering engineered wood fiber and the global status of peat. Their work directly informs how professional growers evaluate substrate decisions.
Executives and Industry Leaders
Economic leadership shapes how growers plan for the future. Dr. Charlie Hall, Chief Economist at AmericanHort and holder of the Ellison Chair in International Floriculture at Texas A&M University, reported that in 2025, 78% of growers reported higher year-to-date sales and 74% said profits were up compared to the prior year.
Research professionals like Scott Hackworth of Industry Insights, Inc. compile the statistical benchmarks that help executives make data-driven decisions. Together, these leaders give the industry a shared economic language.
Professional Associations and Their Role
Professional associations serve as the connective tissue of the horticulture industry. They coordinate advocacy, fund research, and create the forums where growers, suppliers, and educators exchange knowledge.
What Associations Actually Do
AmericanHort, formed in 2014 from the merger of ANLA and OFA, serves more than 1,800 company members and 20,000+ associates across the U.S. green industry. Its foundation, the Horticultural Research Institute (HRI), funds scientific research across commercial production topics.
In one recent funding cycle, HRI funded 18 new green-industry projects, including root-development research for slow-growing nursery stock. AmericanHort’s annual Cultivate event brings this network together in one place:
- Education: Cultivate’26 features 160+ educational sessions covering advocacy, economics, research, and operational strategy
- Audience: Growers, retailers, breeders, suppliers, designers, landscapers, educators, and researchers all attend
- Signature programs: State of the Industry address, Women in Horticulture, and tHRIve sessions through HRI
- Speaker diversity: Content targets new and advanced growers, sales teams, CEOs, technicians, and HR professionals
Accreditation and Standards Bodies
Standards bodies define what “quality” means in professional horticulture. They set the benchmarks that growers, input suppliers, and growing media producers must meet to serve regulated markets.
How Accreditation Shapes Career Pathways
OMRI (Organic Materials Review Institute), accredited to ISO 17065, reached a milestone of 10,000 OMRI Listed products in early 2024, representing the largest publicly searchable organic input database in North America. The Mulch and Soil Council maintains the Uniform Voluntary Product Guidelines for horticultural mulches, growing media, and landscape soils.
Veriflora® Responsibly Managed Peatlands certification covers the full peat extraction life cycle, including post-extraction restoration, greenhouse-gas inventories, and labor standards. Sun Gro requires that horticultural peat in its products be extracted from bogs certified under the Veriflora® Responsibly Managed Peatlands program.
Employers and Corporate Stakeholders
Employers define the day-to-day reality of professional growing careers. The global commercial greenhouse market was estimated at approximately $37.78 billion in 2025 by Fortune Business Insights, with major suppliers providing structures, climate controls, lighting, and irrigation systems.
Key employer categories in the United States include:
- Greenhouse growers: Large-scale operations producing bedding plants, vegetables, and ornamentals for wholesale and retail markets
- Nursery operators: Container and field-grown stock producers serving landscape contractors and garden retailers
- Wholesale distributors: Regional and national distributors connecting growers to retail and commercial buyers
- Landscape contractors: End-use employers who source from growers and apply professional horticultural expertise on-site
- Growing media producers: Companies like Sun Gro that supply peat moss and peat and bark-based growing mixes to professional operations across North America
Government Agencies and Workforce Policy
Federal and state agencies shape the regulatory and labor environment that professional growers operate within. Their decisions on workforce policy, data collection, and research funding have direct consequences for greenhouse and nursery operations.
The primary federal agencies include USDA NIFA, ERS, NASS, APHIS, and FSA. The USDA workforce fell by more than 20,000 employees in 2025, straining producer-support capacity at FSA, NRCS, and NASS. An ag-labor reform bill was introduced in July 2026, backed by NASDA, seeking to stabilize the seasonal agricultural workforce.
State-Level Workforce Development Boards
State-level agencies play a practical role in connecting growers to training and labor resources. AmericanHort’s top advocacy priorities for 2025 centered on H-2A modernization, AEWR wage-rate calculations, and access to a stable seasonal workforce, issues that state workforce boards help address through regional programs.
UF/IFAS Extension places faculty and agents in every Florida county, connecting local grower needs to university research. This cooperative extension model, replicated nationally, bridges government policy, university expertise, and on-farm application for professional growers.
Training Providers and Educational Institutions
Formal training programs give professional growers and their teams the technical skills that production demands. Strong programs combine academic rigor with practical, crop-specific application.
Key training resources available to U.S. professional growers include:
- HortCred: AmericanHort launched this micro-credentialing program in 2025, offering CORE, PRO, and LEAD digital badges in irrigation, pest management, plant nutrition, and soils and substrates
- UF/IFAS Greenhouse Training Online: A 4-week, award-winning certificate series taught in English and Spanish, covering Greenhouse 101, Nutrient Management, and Professional Irrigation
- AmericanHort Certification: Formal Greenhouse Technician and Section Grower certifications built with an advisory team representing greenhouse operations, extension services, owners, and managers
- University programs: NC State, Texas A&M, Virginia Tech, and UF/IFAS all offer undergraduate, graduate, and extension programming in horticulture and substrate science
- Salary benchmarking: AmericanHort’s Salary and Benefits Benchmark Survey covers 34 job titles to help employers retain skilled workers
Why These Players Matter for Your Career
The people and organizations behind the professional growing industry don’t just shape policy. They determine where career opportunities emerge, what skills employers value, and how compensation benchmarks are set.
Career data shows clear differentiation by role:
- Greenhouse manager: Projects 9% growth, well above the 1% average for general grower positions, according to career outlook data
- Urban farmer: Projects 12% growth, reflecting demand for technology-enabled production specialists
- Master grower: Specialized roles can exceed $100,000 on current salary aggregators, per ZipRecruiter
- Career infrastructure: The ASHS Career Center, HireHorticulture.com, and APGA Jobs Board connect job seekers to employers across commercial production, public gardens, extension, and research
- Career pathways: The Seed Your Future initiative documents dozens of distinct horticulture career pathways spanning plant breeding, greenhouse production, retail, landscape design, and research
Conclusion
The professional growing industry is shaped by a wide network of researchers, associations, employers, standards bodies, government agencies, and training providers. Each group plays a distinct role, and understanding how they connect helps growers make better decisions about inputs, credentials, and career direction.
For professional growers evaluating growing media, substrate science, or workforce development, knowing the key players is a practical advantage. Sun Gro Horticulture operates as The Growing Media Company within this ecosystem, producing science-driven peat moss and peat and bark-based growing mixes that meet the standards these organizations help define.
Frequently Asked Questions
How much does professional horticulture certification cost in the United States?
Certification costs vary by program and credential level. AmericanHort’s HortCred micro-credentials offer CORE, PRO, and LEAD digital badges at accessible price points designed for working professionals.
Formal certifications like Greenhouse Technician and Section Grower involve exam and membership fees that differ by organization. In the United States, employers increasingly cover certification costs as part of workforce retention strategies, particularly for roles where labor shortages are acute.
How does the United States professional growing industry compare to other countries?
The U.S. industry generated $18.3 billion in horticultural product sales in 2024, making it one of the largest in the world. Canada’s greenhouse, nursery, and sod sector reached $6.5 billion in sales in 2025, up 7.5% from the prior year, according to Statistics Canada.
Canada is also projected to face a 46,500-job labor gap, signaling strong career demand for trained professionals across North America.
What is the role of growing media standards in professional horticulture?
Growing media standards make sure performance and regulatory compliance remain consistent across commercial production. The Mulch and Soil Council’s Uniform Voluntary Product Guidelines set mandatory compliance and testing standards for certified growing media products.
Veriflora® Responsibly Managed Peatlands certification covers the full peat extraction life cycle, including restoration and greenhouse-gas inventories. These standards matter because professional growers depend on consistent substrate performance to maintain crop quality and meet buyer specifications.
How does AmericanHort compare to other professional associations for growers?
AmericanHort is the largest trade association specifically serving the U.S. green industry, with more than 1,800 company members and 20,000+ associates. Its Horticultural Research Institute is the primary private funder of green-industry research in the United States.
Other associations such as ASHS (American Society for Horticultural Science) focus more on academic and research communities, while APGA serves public garden professionals. AmericanHort’s combination of advocacy, education, research funding, and the annual Cultivate event makes it the broadest resource for commercial growers.
How do professional growers get started with workforce training programs?
AmericanHort’s HortCred program is a practical starting point, offering flexible online digital badges in soils and substrates, irrigation, pest management, and plant nutrition. UF/IFAS Greenhouse Training Online provides a 4-week certificate series available in English and Spanish, designed specifically for commercial production staff.
Labor averages 38% of a grower’s cost of production, according to Jobs and Skills Australia, making workforce competency one of the highest-leverage investments a growing operation can make.