Nursery and Tree Production (NAICS 111421): An Investor's Primer

1. Overview

Nursery and Tree Production is the business of growing living plants to sell to someone else who will plant them: the shade trees, shrubs, evergreens, ground cover, rolls of turf grass (sod), fruit and nut tree stock, and Christmas trees that end up in yards, subdivisions, office parks, orchards, highway medians, and garden-center parking lots. It is farming, but the "crop" is ornamental and structural rather than edible, and a single crop can sit in the field or the container yard for years before it is big enough to sell.

Why it matters to an investor: this is a real, cash-generating slice of U.S. agriculture — nursery stock alone was the single largest horticultural crop category in the country in 2024, at about \$5.3 billion in sales [1]. It sits upstream of much larger consumer-facing industries (home-improvement retail, landscaping services, homebuilding), so it rides the same housing and consumer-spending cycles, but with its own twist: multi-year growing cycles, heavy working capital tied up in living inventory, and acute exposure to weather, pests, and labor. The business is less predictable than a typical branded consumer company because the inventory is alive — seasonal, perishable, weather-sensitive, and costly to transport.

The wrinkle for public-market investors: there is essentially no pure-play, publicly traded U.S. nursery grower. The biggest producers are private, family-owned, or private-equity-held. Public investors reach the sector indirectly — through input suppliers, distributors, the big-box retail channel, landscaping-services buyers, and one diversified holding company that owns a leading grower. Private investors, by contrast, can own the thing directly: a nursery, a sod farm, or a stake in a regional grower rolling up its neighbors.

2. What it is and how it's structured

Formal scope. NAICS (North American Industry Classification System) code 111421 covers establishments that grow nursery products — nursery stock, shrubbery, bulbs, fruit/nut stock, sod, and so on, under cover or in open fields — and/or grow short-rotation woody trees (a growth-and-harvest cycle of 10 years or less) for pulp or tree stock [2]. In plain terms: growers of woody ornamentals, landscape trees and shrubs, turf sod, and seedling/liner stock. The value chain runs from propagation and young plants, to field or greenhouse growing, to finishing and wholesale distribution, and only then to retail, landscape installation, municipal projects, and online fulfillment.

What it explicitly excludes (each is a separate NAICS code, and confusing them inflates or deflates the industry) [2]:

• Floriculture Production (111422) — bedding and garden plants, potted flowering and foliage plants, cut flowers, and cut greens. This is the "color and houseplants" side of the greenhouse business, and it is not 111421.
• Forest Nurseries and Gathering of Forest Products (113210) — nurseries growing tree seedlings for reforestation, plus timber-support activities. Landscape/ornamental nurseries are 111421; reforestation seedling nurseries are 113210.
• Timber Tract Operations (113110) — trees grown on cycles longer than 10 years for timber. Short-rotation woody crops (10 years or less) stay in 111421; longer rotations do not.
• Nursery, Garden Center, and Farm Supply Retailers (444240) — the retail garden center that buys plants and resells them. That is retail, not production. (Draft note: the older NAICS 2017 code for this was 444220; the 2022 revision renumbered it to 444240.)
• Landscaping Services (561730) — the crew that installs and maintains the plants.
• Tree Nut Farming (111335) and fruit orchards — production of the nuts and fruit themselves, as opposed to the young stock; vegetable and melon bedding plants likewise sit under vegetable farming.

Ownership mix. The industry is dominated by small, often family-run operations, but the dollars concentrate in a few large growers. Across all horticultural specialties in 2024, family- or individually-owned operations were the largest group by count while corporations were a minority of operations — yet corporations booked the majority of the dollars [1]. The federal Small Business Administration (SBA) sets the "small business" ceiling for 111421 at just \$3.25 million in average annual receipts [3] — a very low bar that the overwhelming majority of growers fall under, which tells you how small the typical operator is. Some larger firms combine growing with breeding, licensing, branding, merchandising, distribution, or retail.

3. How big it is

Three honest caveats up front on the federal numbers:

1. Crop production is measured by USDA, not the Economic Census. Most industries in this primer series are sized from the U.S. Census Bureau's business statistics (establishments, payroll, receipts). Farming — including nursery and tree production — is not covered there. It is enumerated by the U.S. Department of Agriculture's (USDA) Census of Agriculture and its special study, the Census of Horticultural Specialties. That is why our ground-truth federal file for 111421 contains only the SBA size standard and no Census Bureau establishment or employment count — those figures are not produced for this code. (The Census Bureau's County Business Patterns, the usual source, explicitly excludes crop production, the self-employed, and most non-employers [2].) The authoritative size source is USDA's National Agricultural Statistics Service (NASS).

2. The USDA total is broader than 111421. The 2024 Census of Horticultural Specialties reported \$18.3 billion in total sales across 23,060 operations [1][4]. But that bundles floriculture (111422) and food crops grown under cover (mushrooms, hydroponic produce) alongside nursery stock, so it is a proxy, not a clean NAICS 111421 total. The 111421 core within it is best read from the commodity lines: nursery stock ≈ \$5.34 billion, sod ≈ \$1.70 billion, and cultivated Christmas trees ≈ \$0.47 billion — roughly \$7.5 billion of the \$18.3 billion total [1]. Bedding plants, potted plants, and cut flowers are the floriculture side and sit outside this code.

3. There is no clean, complete 111421 denominator. Because the census mixes codes and omits the smallest operators (see below), any "industry size" or "market share" figure for 111421 alone should be treated as an estimate, not a precise total.

The nursery-stock breakdown for 2024 [1]:

Geography is concentrated. California (\$3.07 billion), Florida (\$2.15 billion), and Oregon (\$1.29 billion) led all horticultural sales in 2024; five states accounted for 48% of sales [1]. Florida and Michigan had the most operations (about 1,779 and 1,775) [1].

Land and labor. In 2024 the sector used roughly 466,981 acres in open production (excluding shade structures), 326,903 acres of sod, and about 166,000 acres of cultivated Christmas trees [1]. Across all horticultural specialties, operations reported about 248,827 hired workers [1] — but this counts the whole horticulture census, not 111421 alone, and even that likely understates true labor because so much of it is seasonal, contract, and family labor that federal counts capture poorly.

Undercount caveat. USDA's census only counts operations selling \$10,000 or more per year [1], so the long tail of hobby growers, roadside sellers, and micro-nurseries below that line is excluded. And a large share of the economic value the public associates with "nurseries" actually shows up downstream — in garden-center retail (444240) and landscaping services (561730), separate codes. One academic estimate put the entire "green industry" value chain (production plus retail plus landscape services) at roughly \$159.6 billion in direct output, about \$191 billion of contribution to GDP, and about 1.6 million direct jobs in 2018 [5]. Production is only one link in that chain.

4. The investable universe

There is no listed pure-play nursery/tree grower in the U.S. The largest producers are private; their scale is real but their financials are mostly undisclosed:

(Private-company revenue figures are third-party estimates — chiefly ZoomInfo — not audited disclosures; treat them as directional. Several of these firms overlap floriculture (111422) or plant genetics and so are only partly within 111421.)

Public exposure is indirect. Investors who want the sector in a brokerage account reach it through adjacent listed companies. Note what you actually own in each case:

For the short-rotation-woody and tree-stock corner, the closest listed names are timberland REITs (real estate investment trusts) — Weyerhaeuser (WY), PotlatchDeltic (PCH), Rayonier (RYN) — which run seedling nurseries, but these are forestry businesses (NAICS 113), not ornamental nursery producers, and should not be mistaken for a 111421 play.

Bottom line for allocators: direct 111421 exposure is a private-markets play — buy or build a nursery, or back a roll-up. Public markets offer only picks-and-shovels and channel proxies.

5. How the money works

A nursery is best understood as biological manufacturing with a long production line. A grower buys or propagates a young plant (a liner or seedling), then spends months to years growing it to a salable size while feeding, watering, spacing, pruning, and protecting it. A one-gallon shrub might take a year; a landscape-sized shade tree, three to seven years; a Christmas tree, seven to ten. Sod is faster, often under two years. That crop sits on the balance sheet as growing inventory the entire time — so the business is working-capital-heavy and cash-hungry long before it books a sale.

The revenue line is units sold × price, but the levers behind it are specific to this industry:

• Space productivity — sales per acre in the field or per square foot under cover. Land, benches, and container pads are the constraint; the game is dollars per unit of growing space per year.
• Shrink (crop loss) — plants die. Weather, disease, pests, and mis-timing all destroy inventory before it sells. Low shrink is a core profitability driver, and unlike most manufacturing, you can't "restart the line" quickly — a lost crop is lost years.
• Price realization and mix — patented/branded varieties (licensed plant cultivars) and premium container plants command higher margins than commodity liners.
• Labor productivity — this is a hand-labor business, and mechanization is the main margin lever against rising wages.
• Freight — plants are bulky, heavy, and perishable, so growers sell regionally; logistics cost caps how far product can profitably travel and pushes the industry toward local/regional structure.

Useful operating metrics are industry-specific rather than generic: sell-through and unsold inventory, crop loss/shrink and inventory aging, survival/yield rates, gross margin per acre or greenhouse square foot, labor hours per sellable plant, freight per unit, water and energy per finished plant, on-time fill rate, customer concentration, and cash conversion. Capacity utilization alone is less telling than sellable output and sell-through — overproduction creates waste, while underproduction loses a retailer's shelf space or a contractor's order.

The cost stack (all horticultural specialties, 2024; production expenses ≈ \$14.9 billion) [1]:

• Labor — ~\$5.57 billion, the single largest line (~37% of expenses).
• Seeds, growing media, and containers — ~\$4.04 billion (up ~39% since 2019).
• Fuel, utilities, supplies, repairs — ~\$2.03 billion (up ~49%).
• Fertilizer and chemicals — ~\$1.04 billion (up ~54%).
• Rent, interest, and taxes — ~\$0.95 billion.
• Marketing and packaging — ~\$0.31 billion.

Note how fast input costs have climbed — media, containers, fertilizer, and fuel all rose 39–54% since 2019 [1] — squeezing growers who can't fully pass price through.

Channel mix drives margin. About 85% of horticultural product is sold wholesale [1]. Selling to home-improvement big boxes (Home Depot, Lowe's) delivers volume but comes with price pressure and, often, markdown or "pay-by-scan" arrangements that push unsold-plant risk back onto the grower. Selling to independent garden centers, landscape contractors, and re-wholesalers typically yields better margins. In 2024, wholesale to other wholesalers was the biggest channel (~\$6.3 billion), followed by home-improvement stores (~\$2.19 billion), retail florists (~\$2.17 billion), and landscape contractors (~\$2.09 billion) [1].

Scale economics are stark. Operations selling \$10,000–\$99,999 were 61% of operations but only ~1% of sales; operations with \$2.5 million or more in sales were only about 6% of operations but produced roughly 82% of wholesale sales, 75% of total sales, and 71% of expenses [1]. The average operation sold about \$794,000 [1]. In other words, a handful of large, capital-intensive growers do most of the volume, sitting atop a very long tail of small farms.

6. What drives demand

Nursery demand is derived demand — it tracks whatever creates a need to plant something:

• New residential construction and landscaping. New homes and subdivisions need trees, shrubs, and sod. Housing starts and lot development are a primary swing factor, which makes the industry interest-rate sensitive twice over — once through housing affordability, and again through the grower's own leveraged working capital [12].
• Repair-and-remodel and existing-home turnover. Homeowners landscape when they buy, sell, or renovate — discretionary spending that softens in downturns. Home-improvement retailer filings flag lawn and garden as a material category [17].
• Commercial, municipal, and institutional landscaping — offices, retail, roads, parks, campuses, utility projects. Commercial beautification has been a relative bright spot; SiteOne and BrightView filings underscore the weight of professional contractors and commercial work [9][12].
• Recurring landscape maintenance and tree care, plus reforestation, restoration, erosion-control, and stormwater projects — steadier, replacement-type demand.
• The consumer gardening cycle. The pandemic-era gardening boom pulled demand forward and then normalized; underlying hobby demand remains a base of support.
• Weather and climate. Storms, freezes, drought, and wildfire destroy existing plantings and drive replacement demand — but the same events can crush a grower's own crop, so weather cuts both ways.
• New varieties and branded genetics, plus retailer expansion and direct-to-consumer/online fulfillment.

Near-term read (a forward-looking judgment, not a reported fact): industry outlooks tie 2025–2026 demand to a housing recovery gated by interest rates, with commercial and landscape-maintenance work holding up better than new installation, and the risk that softer demand forces price cuts even as costs stay elevated [12].

7. Regulation

Nursery production is lightly regulated on the financial side but heavily regulated on plant health and labor:

• Plant health / phytosanitary rules. USDA's Animal and Plant Health Inspection Service (APHIS), through its Plant Protection and Quarantine (PPQ) program and under the Plant Protection Act of 2000, regulates the interstate movement of plants and imposes domestic quarantines when invasive pests appear. When APHIS or a state declares a regulated area, host plants and nursery stock can't leave it without inspection, a compliance agreement, or a phytosanitary certificate [10]. Active examples include the spotted lanternfly (multiple state quarantines), boxwood blight, emerald ash borer, and sudden oak death [10]. A quarantine can instantly cut a grower off from out-of-state markets or force destruction of stock.
• State nursery licensing. Every state runs its own nursery registration/licensing and inspection program alongside the federal rules; interstate shipping generally requires state phytosanitary certification. This is a big reason "nurseries can't ship everywhere" and the industry stays regional [10].
• Pesticides and worker safety. The Environmental Protection Agency (EPA) regulates crop-protection chemicals under FIFRA (the Federal Insecticide, Fungicide, and Rodenticide Act); neonicotinoid insecticides (a systemic class) face ongoing scrutiny over pollinator effects. The EPA's Agricultural Worker Protection Standard (WPS) governs training, pesticide information, protective measures, decontamination supplies, and re-entry restrictions for nursery and greenhouse workers [21].
• Labor and immigration. The workforce leans heavily on foreign seasonal labor via the H-2A (agricultural, uncapped, but tied to a federally set "adverse effect wage rate") and H-2B (non-agricultural, capped) visa programs, administered by the U.S. Department of Labor [13][23]. Availability, cost, housing/transport obligations, and immigration-enforcement policy are perennial pressure points, and the required wage rates rise over time [13].
• Workplace safety. The Occupational Safety and Health Administration (OSHA) regulates machinery, chemical, heat, and lifting hazards in agricultural operations [22].
• Water, land, and invasive-species rules. Water rights and use (especially in the West), nutrient-runoff and stormwater rules around container yards, zoning, and state invasive-plant bans that shrink what growers can legally sell are all growing constraints.

For an investor, regulatory diligence means checking inspection history, quarantine protocols, pesticide and worker-safety records, water access, insurance, and the practical ability to ship across state lines.

8. Competitive dynamics and consolidation

Fragmented and regional. Freight economics and climate zones keep the industry local: a Georgia grower can't cheaply ship a full truck of shrubs to Arizona. That structure has preserved thousands of independent, specialized growers (woody ornamentals vs. shade trees vs. sod vs. Christmas trees vs. propagation/liners), with the top ~6% of operations doing most of the volume [1]. The distribution layer around growers is more consolidatable than growing itself — SiteOne's 2025 filing estimated that regional and local competitors still made up roughly 81% of the adjacent landscape-supply market, a fragmented channel it is actively rolling up [9].

Consolidation is underway but slow. Two forces push it: an aging owner base facing succession, and buyers (big boxes, national landscapers) that prefer fewer, larger, multi-region suppliers. Recent moves include Costa Farms — majority-owned since 2017 by publicly traded Markel Group (MKL) through its Markel Ventures arm [6] — acquiring Battlefield Farms (2024) and others [11], and Bailey Nurseries acquiring smaller growers [15]. Everde Growers itself was assembled from a roll-up of TreeTown USA, Hines, Village Nurseries, and Medallion Growers before its 2025 restructuring [8].

Buyer power is a real constraint. The concentration of the retail channel in a few big boxes gives those buyers leverage over growers on price and inventory risk (markdowns, pay-by-scan). Differentiation therefore comes from plant genetics and branding — patented cultivars and branded programs (marketed under names like Proven Winners or Monrovia) carry royalties and pricing power that commodity liners don't.

Barriers to entry are moderate but real: land and water, multi-year crops that tie up capital before first revenue, regional distribution relationships, and — increasingly — the automation needed to survive rising labor costs. Local and specialty growers stay relevant where climate adaptation, unique varieties, short-haul delivery, or personal service beat national scale.

9. Risks

• Weather and climate — the dominant operating risk. Drought, freeze, hurricane, and wildfire can wipe out crops that took years to grow.
• Biological risk and quarantine. A pest or disease outbreak can destroy stock and, via quarantine, sever access to entire state markets [10].
• Cyclicality and rates. Demand rides housing and discretionary spending; the long, debt-funded working-capital cycle makes growers doubly sensitive to interest rates. Everde Growers — one of the largest woody-stock producers, ~6,700 acres — filed for Chapter 11 bankruptcy in February 2025 after Southern California drought then wet weather, a failed refinancing, and interest costs that more than doubled on roughly \$207 million of debt; it was sold to an insider-controlled entity for about \$131.7 million within 88 days [8]. That single case captures the core financial risk — weather + leverage + rate shock — better than any abstraction.
• Labor. Availability and cost of seasonal labor, dependence on H-2A/H-2B visas, worker-safety obligations, and immigration-policy swings [13].
• Input-cost inflation. Containers, growing media (peat), fertilizer, and fuel rose 39–54% since 2019 and may not be fully passable to price [1].
• Retail/channel concentration. Margin pressure and markdown risk from a few big-box buyers; over-reliance on one retailer is a classic single point of failure.
• Perishability and timing mismatch. Unsold or damaged plants have little recovery value, and because crops are committed years ahead, a grower can plant into a strong market and harvest into a weak one.
• Trade and tariffs. Tariffs on imported inputs (containers, equipment, some plant material) are a live wildcard for 2025–2026 [12].
• Data risk. Public statistics do not provide a clean, complete NAICS 111421 denominator, so industry-size and market-share claims are easy to overstate.

10. How to invest and the outlook

Public-market routes (all indirect — there is no pure-play grower to buy):

• Closest to a grower: Markel Group (MKL), which owns a majority of Costa Farms [6][14] — though it's a tiny slice of a large, diversified insurance holding company, so exposure is dilute.
• Inputs/suppliers: Scotts Miracle-Gro (SMG) [16], Central Garden & Pet (CENT/CENTA) [23].
• Distribution/channel: SiteOne Landscape Supply (SITE) [9] — a distribution and contractor-demand play with its own seasonal working capital and acquisition risk.
• Services/demand: BrightView Holdings (BV) [15-bv] — commercial landscape maintenance, development, and tree care.
• Retail channel: Home Depot (HD), Lowe's (LOW) [17].
• Tree-stock/forestry-adjacent: timber REITs Weyerhaeuser (WY), PotlatchDeltic (PCH), Rayonier (RYN) — forestry, not ornamental nursery, so a loose proxy at best.

Private-market routes (where the actual industry lives):

• Direct ownership/operation of a nursery or sod farm, or nursery-use farmland; growth capital, private credit, equipment finance, plant-genetics stakes, or partnerships with distributors and retailers.
• Private-equity roll-ups and search-fund acquisitions of regional growers — the aging-owner succession wave is the central private thesis, letting a buyer consolidate fragmented, cash-generative operations. The counter-lesson is Everde: scale plus leverage plus weather can still end in bankruptcy [8], so underwriting must respect the biological and working-capital intensity.

Due-diligence checklist for a private deal: product and customer mix; sell-through, crop loss, and inventory aging; pricing power and retailer concentration; labor, water, energy, and freight costs; crop-cycle duration and cash conversion; greenhouse age, automation, and irrigation; plant patents/trademarks/licensing and brand strength; disease, quarantine, insurance, and regulatory history; acquisition quality; and valuation against mid-cycle, not peak-season, earnings.

Outlook (forward-looking judgment). Near term, the swing factors are interest rates (through housing and through growers' own financing costs), labor availability and cost, still-elevated input prices, and tariffs [12]. Reported 2024 results looked strong in nominal terms — total horticultural sales up 33% since 2019 [1] — but much of that is inflation, and expenses climbed nearly as fast (production expenses up ~28%) [1], so real margin growth is thinner than the headline suggests. Structurally, expect continued gradual consolidation as owners retire, more automation to blunt labor costs, plant genetics and branding as the durable margin lever, and rising weather/climate volatility as the biggest source of year-to-year earnings risk. The strongest businesses will combine high sell-through, low shrink, diverse customers, disciplined capital spending, and defensible genetics or distribution; the weakest will be exposed to one retailer, one region, one crop cycle, or heavily leveraged land and greenhouse assets. For most investors this remains a private-markets, operator's industry — attractive for those who can hold living, cyclical, weather-exposed inventory, and hard to touch cleanly from a public brokerage account.

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Sources

1. USDA National Agricultural Statistics Service (NASS), "Horticulture Highlights: Results from the 2024 Census of Horticultural Specialties" (ACH22-27), February 2026. https://www.nass.usda.gov/Publications/Highlights/2026/HorticulturalSpecialties2024.pdf
2. U.S. Census Bureau, North American Industry Classification System (NAICS) 2022 — 111421 Nursery and Tree Production and adjacent codes (111422, 113110, 113210, 444240, 561730, 111335); and County Business Patterns scope/methodology. https://www.census.gov/naics/?input=111421&year=2022
3. U.S. Small Business Administration, "Table of Small Business Size Standards," 2023 — NAICS 111421 = \$3.25 million average annual receipts (Histometrics ground-truth federal statistic). https://www.sba.gov/document/support-table-size-standards
4. Greenhouse Management (GIE Media), "U.S. horticulture operations report \$18.3 billion in sales: USDA," 2026. https://www.greenhousemag.com/news/us-horticulture-industry-sales-2024-census-horticultural-specialties-report-results-usda/
5. Hall, Hodges, Palma, et al., "Economic Contributions of the Green Industry in the United States in 2018," Ellison Chair, Texas A&M University, 2020. https://ellisonchair.tamu.edu/files/2020/11/Green-Industry-Economic-Contributions-Report.pdf
6. Markel Corporation, "Markel Announces Investment in Costa Farms," 2017, and coverage of the ~81% majority stake via Markel Ventures. https://www.markel.com/about-us/news-and-press/markel-announces-investment-in-costa-farms-7781
7. ZoomInfo, private-company revenue estimates — Altman Plants and Monrovia Nursery Company, 2025–2026 (unverified third-party estimates). https://www.zoominfo.com/c/monrovia-nursery-co/25445299
8. Nursery Management / Greenhouse Grower (GIE Media), "Everde Growers files for Chapter 11 bankruptcy" (Feb. 24, 2025) and follow-up emergence coverage. https://www.nurserymag.com/news/everde-growers-files-bankruptcy-treetown-usa-texas/
9. SiteOne Landscape Supply, 2025 Form 10-K (SEC), incl. ~81% fragmented-competitor estimate for the landscape-supply market. https://www.sec.gov/Archives/edgar/data/1650729/000165072926000005/site-20251228.htm
10. USDA Animal and Plant Health Inspection Service (APHIS), "Spotted Lanternfly" and Plant Protection and Quarantine (PPQ) programs under the Plant Protection Act of 2000. https://www.aphis.usda.gov/plant-pests-diseases/slf
11. Greenhouse Grower / Nursery Management, "Major Move in Floriculture as Costa Farms Acquires Battlefield Farms," January 2024. https://www.greenhousegrower.com/management/major-move-in-floriculture-as-costa-farms-acquires-battlefield-farms/
12. University of Georgia CAES Field Report, "2026 Green Industry Outlook," 2026; Farm Credit East, "2026 Outlook for the Green Industry." https://fieldreport.caes.uga.edu/publications/AP130-4-12/2026-green-industry-forecast/
13. University of Florida IFAS Extension, "H-2A Workers in Demand in the Ornamental Horticulture Industry" (FE1141); AmericanHort, "Top Issues." https://ask.ifas.ufl.edu/publication/FE1141
14. Markel Group, 2025 Form 10-K (SEC) and "Markel Reports 2017 Financial Results," documenting the Costa Farms investment within Markel Ventures. https://www.sec.gov/Archives/edgar/data/1096343/000109634326000020/mkl-20251231.htm

15. Bailey Nurseries, "About Us" (family-owned national wholesale grower, founded 1905). https://www.baileynurseries.com/about/ 15-bv. BrightView Holdings, 2025 Form 10-K (SEC) — largest U.S. commercial landscaper. https://www.sec.gov/Archives/edgar/data/1734713/000119312525288109/bv-20250930.htm

16. The Scotts Miracle-Gro Company, 2025 Form 10-K (SEC) — consumer lawn-and-garden inputs. https://www.sec.gov/Archives/edgar/data/825542/000082554225000022/smg-20250930.htm

17. The Home Depot, 2025 Form 10-K, and Lowe's Companies, 2025 Form 10-K (SEC) — home-improvement retail channel. https://www.sec.gov/Archives/edgar/data/354950/000162828026019436/hd-20260201.htm
18. Metrolina Greenhouses, "Our Story" (family-owned large-scale grower serving big-box and online channels). https://www.metrolinagreenhouses.com/our-story
19. Ball Horticultural Company, corporate site (family-owned breeder, producer, and distributor). https://ballhort.com/
20. U.S. Environmental Protection Agency, "Agricultural Worker Protection Standard (WPS)" (and FIFRA pesticide regulation). https://www.epa.gov/pesticide-worker-safety/agricultural-worker-protection-standard-wps
21. Occupational Safety and Health Administration (OSHA), "Agricultural Operations — Hazards and Controls." https://www.osha.gov/agricultural-operations/hazards
22. U.S. Department of Labor, "H-2A Temporary Agricultural Program." https://www.dol.gov/agencies/eta/foreign-labor/programs/h-2a
23. Central Garden & Pet Company, annual report / Form 10-K (FY2024 revenue ~\$3.2B). https://ir.central.com/