Nursery licensing is not one nationwide system. A plant business may need a state nursery license, nursery registration, plant dealer permit, inspection certificate, phytosanitary certificate, or a combination of these documents depending on what it grows, sells, installs, and ships.
This guide explains the major license and certificate types and identifies the primary plant-regulatory entity to contact in every U.S. state. It is written for nursery growers, greenhouse operators, garden centers, landscapers, online plant sellers, backyard nurseries, and other businesses that handle live plants.
Last reviewed: September 18, 2026. Requirements, fees, exemptions, and agency names can change. Confirm current rules with the appropriate regulator before selling or shipping plants. This guide is educational information, not legal advice.
Nursery license vs. certificate: what is the difference?
The words license, registration, permit, and certificate are not interchangeable. States use different terminology, but most nursery businesses encounter several separate layers of compliance.
Nursery grower license or registration
This commonly applies when you propagate, grow, cultivate, or overwinter nursery stock for sale. A state may inspect the growing area before or after issuing a certificate or license. The definition of “nursery stock” also differs by state; it may include hardy trees, shrubs, vines, perennials, bulbs, sod, aquatic plants, or other propagative material, while annuals or houseplants may be treated differently.
Nursery dealer or plant seller license
A dealer credential generally applies when a business buys plants from another grower and resells them. Garden centers, retail stores, landscapers, brokers, market vendors, and online sellers can fall into this category even if they do not propagate plants themselves.
Certificate of inspection
A certificate of inspection documents that nursery stock or a nursery has been inspected for regulated pests and diseases. In some states, the inspection certificate is closely tied to the nursery license. In others, it is a separate document, especially when plants are being shipped outside the state.
Phytosanitary certificate
A phytosanitary certificate is a plant-health document used when the destination requires official certification that a shipment has been inspected and meets specified pest requirements. It is not a general business license. For international exports, the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (USDA APHIS) explains that phytosanitary certificates document compliance with the importing country’s current plant-health requirements. Applications are commonly handled through the Phytosanitary Certificate Issuance and Tracking (PCIT) system with an Authorized Certification Official.
Quarantine certificates and compliance agreements
Plants or nursery locations in regulated pest areas may be subject to quarantines or compliance agreements. Examples can involve Japanese beetle, spongy moth, imported fire ant, citrus pests, spotted lanternfly, or other regulated organisms. These requirements can affect treatment, inspection timing, labeling, routing, or where plants may be shipped.
Business, tax, zoning, and pesticide licenses are separate
A nursery license does not usually replace ordinary business requirements. A nursery may also need state business registration, sales-tax registration, local zoning or home-occupation approval, building or sign permits, employer registrations, and separate pesticide credentials. If you apply restricted-use pesticides or provide pesticide applications for customers, check the pesticide licensing rules separately.
Who commonly needs nursery licensing?
- Wholesale and retail plant nurseries.
- Greenhouses growing plants for commercial sale.
- Garden centers and stores reselling live plants.
- Landscapers that furnish, hold, grow, or install nursery stock.
- Plant brokers and distributors.
- Online and mail-order plant sellers.
- Farmers-market and temporary-event plant vendors.
- Home and backyard nurseries once they meet the state’s regulated activity or sales threshold.
- Businesses shipping plants across state lines or internationally.
Do not assume a small operation is automatically exempt. Some states have low dollar thresholds, while others regulate particular activities regardless of scale. For example, Washington generally requires a nursery plant seller-installer license for people selling more than $100 of plants in a calendar year; Wisconsin generally requires nursery licensing when annual nursery-stock sales exceed $250; Vermont has an exemption for a person selling $1,000 or less of nursery stock in a year. These are examples of why the home-state rule must be checked directly.
State-by-state nursery licensing and certification contacts
The table below identifies the primary state plant-regulatory entity to contact about nursery licensing, registration, inspections, and plant-health certification. The “common credential” column is a starting point, not a substitute for the state’s current rules. A state may have additional license classes, exemptions, county responsibilities, or separate export-certification procedures.
| State | Primary nursery / plant-regulatory entity | Common credential or topic to ask about |
|---|---|---|
| Alabama | Alabama Department of Agriculture & Industries — Plant Protection Section | Nursery grower/dealer certification; nursery inspection; phytosanitary certification |
| Alaska | Alaska Department of Natural Resources — Division of Agriculture, Inspection Services / Plant Health | Plant-health inspection, nursery-stock movement, and phytosanitary certification; confirm any separate business licensing |
| Arizona | Arizona Department of Agriculture — Plant Services Division / Office of Plant Services | Nursery certification, inspections, and export certification |
| Arkansas | Arkansas Department of Agriculture — Plant Industries Division / Regulatory Services | Nursery licensing and nursery-stock inspection |
| California | California Department of Food and Agriculture — Plant Health & Pest Prevention Services, Nursery Services Program; county agricultural commissioners also participate | License to Sell Nursery Stock, nursery inspection, certification, and quarantines |
| Colorado | Colorado Department of Agriculture — Plant Industry Division | Nursery registration, inspection, and plant-health requirements |
| Connecticut | Connecticut Agricultural Experiment Station — Office of the State Entomologist | Nursery registration and certificate; nursery dealer registration/permit |
| Delaware | Delaware Department of Agriculture — Plant Industries Section | Nursery industry licensing, inspection certificates, and phytosanitary certification |
| Florida | Florida Department of Agriculture and Consumer Services — Division of Plant Industry | Nursery registration, stock dealer registration, inspections, and certificates |
| Georgia | Georgia Department of Agriculture — Plant Protection Program | Live Plant License, nursery inspection, and phytosanitary certification |
| Hawaii | Hawaii Department of Agriculture — Plant Industry Division, Plant Quarantine Branch | Certified nursery, plant quarantine, interisland/interstate movement, and export certification |
| Idaho | Idaho State Department of Agriculture — Plant Industries | Nursery license, inspection, and export certification |
| Illinois | Illinois Department of Agriculture — Bureau of Environmental Programs, Nursery Inspection Program | Nursery/greenhouse and nursery dealer certificates; inspections |
| Indiana | Indiana Department of Natural Resources — Division of Entomology & Plant Pathology | Nursery grower/dealer licensing, inspections, and certification |
| Iowa | Iowa Department of Agriculture and Land Stewardship — Entomology & Plant Science Bureau | Nursery Dealer Certificate; nursery grower inspection/certification |
| Kansas | Kansas Department of Agriculture — Plant Protection & Weed Control | Live Plant Dealer License, nursery inspections, and phytosanitary certification |
| Kentucky | Kentucky Office of the State Entomologist — University of Kentucky | Nursery and nursery dealer licensing; inspections and phytosanitary certification |
| Louisiana | Louisiana Department of Agriculture and Forestry — Horticulture Commission | Nursery Grower Permit and Nursery Stock Dealer Permit |
| Maine | Maine Department of Agriculture, Conservation and Forestry — Bureau of Agriculture, Division of Animal and Plant Health, Horticulture Program | Nursery licensing, inspections, and plant-health certification |
| Maryland | Maryland Department of Agriculture — Plant Protection & Weed Management | Nursery inspection/certification and plant dealer/broker requirements |
| Massachusetts | Massachusetts Department of Agricultural Resources — Crop and Pest Services | Annual nursery grower/agent licensing, inspection, and phytosanitary certification |
| Michigan | Michigan Department of Agriculture and Rural Development — Pesticide & Plant Pest Management Division, Plant Health / Nursery Program | Nursery Grower and Nursery Dealer licenses; location-specific licensing can apply |
| Minnesota | Minnesota Department of Agriculture — Nursery Certification / Plant Protection | Live Plant Dealer Nursery Certificate, inspection, and certification |
| Mississippi | Mississippi Department of Agriculture and Commerce — Bureau of Plant Industry | Nursery and nursery dealer certification; plant inspection |
| Missouri | Missouri Department of Agriculture — Plant Industries Division, Plant Pest Control | Nursery grower/dealer registration and inspection certification |
| Montana | Montana Department of Agriculture — Nursery Program | Nursery license, inspections, and plant-health requirements |
| Nebraska | Nebraska Department of Agriculture — Entomology / Nursery Certification Program | Nursery Stock Distributor licensing and nursery grower inspection/certification |
| Nevada | Nevada Department of Agriculture — Plant Industry Division | Nursery Stock Dealer License, inspection, and plant-health requirements |
| New Hampshire | New Hampshire Department of Agriculture, Markets & Food — Division of Plant Industry | Plant dealer/landscaper licensing, nursery inspection, and certification |
| New Jersey | New Jersey Department of Agriculture — Division of Plant Industry | Nursery inspection and certification; dealer requirements |
| New Mexico | New Mexico Department of Agriculture — Entomology & Nursery Industries | Nursery Dealer License and Nursery Inspection Certificate |
| New York | New York State Department of Agriculture and Markets — Division of Plant Industry | Certificate of Registration as a nursery grower or nursery dealer |
| North Carolina | North Carolina Department of Agriculture & Consumer Services — Plant Industry Division, Nursery Regulatory Services | Nursery Certificate, Nursery Dealer Certificate, inspection, and export certification |
| North Dakota | North Dakota Department of Agriculture — Plant Industries / Nursery Program | Nursery licensing, inspections, and plant-health certification |
| Ohio | Ohio Department of Agriculture — Plant Health / Plant Pest Control | Nursery Stock Certificate and dealer-in-nursery-stock licensing |
| Oklahoma | Oklahoma Department of Agriculture, Food and Forestry — Plant Industry | Grower, Dealer, or Landscaper License; nursery inspection and phytosanitary certification |
| Oregon | Oregon Department of Agriculture — Nursery & Christmas Tree Program | Nursery license, inspection, quarantine compliance, and certification |
| Pennsylvania | Pennsylvania Department of Agriculture — Bureau of Plant Industry | Plant Merchant Certification for nursery/plant businesses; inspections |
| Rhode Island | Rhode Island Department of Environmental Management — Agriculture / Regulatory Services | Nursery licensing, nursery-stock dealer requirements, inspections, and certification |
| South Carolina | Clemson University Department of Plant Industry | Nursery grower/dealer licensing, inspection, and certification |
| South Dakota | South Dakota Department of Agriculture and Natural Resources — Division of Agricultural Services, Plant Industry Program | Resident Nurseryman or Nursery Stock Dealer license; Certificate of Inspection |
| Tennessee | Tennessee Department of Agriculture — Consumer and Industry Services, Plant Certification Section | Plant Certification License covering nursery, greenhouse, plant dealer, florist, and landscaper categories as applicable |
| Texas | Texas Department of Agriculture — Regulatory Programs, Plant Quality, Nursery Floral Program | Nursery Floral License; class depends on growing/selling activity and location type |
| Utah | Utah Department of Agriculture and Food — Plant Industry, Nursery Program | Annual Nursery License for regulated nursery sellers/outlets |
| Vermont | Vermont Agency of Agriculture, Food and Markets — Plant Health & Pest Management, Nursery Inspection Program | Annual nursery license; grower inspection and Certificate of Inspection |
| Virginia | Virginia Department of Agriculture and Consumer Services — Office of Plant Industry Services | Nursery Operation License or Nursery Stock Dealer License |
| Washington | Washington State Department of Agriculture — Plant Health, Plant Services Program | Nursery Plant Seller-Installer License; limited plant-sale permits for qualifying organizations |
| West Virginia | West Virginia Department of Agriculture — Plant Industries Division | Nursery / Nursery Dealer Registration and Certificate of Registration |
| Wisconsin | Wisconsin Department of Agriculture, Trade and Consumer Protection — Bureau of Plant Industry / Nursery Program | Nursery Grower License and/or Nursery Dealer License; inspection and shipping certificates |
| Wyoming | Wyoming Department of Agriculture — Technical Services Division | Nursery Stock Dealer and Nursery Stock Salesman licensing; inspection requirements |
Why this table is a starting point: the National Plant Board’s State Law & Regulation Summaries are specifically maintained for nursery-stock growers, brokers, purchasers, and others involved in interstate plant movement. The summaries are periodically updated by member plant-regulatory agencies. Use the state summary together with the state’s current application page before filing.
Important examples of how state rules differ
Washington: a seller-installer license can reach very small sellers
Washington’s Nursery Plant Seller-Installer Licensing program covers many growers, retailers, landscapers, brokers, and other plant sellers. The state says individuals selling more than $100 worth of plants in a calendar year generally need the license, while certain casual sales at or below that amount are exempt.
Texas: the license follows the location and activity
Texas uses a Nursery Floral License. The Texas Department of Agriculture states that each location where nursery products or floral items are sold, offered for sale or lease, distributed, or grown for sale or lease must be registered. License classes distinguish sellers that do not grow from businesses that grow and sell.
Tennessee: multiple categories now use one Plant Certification License
Tennessee’s Plant Certification License replaced separate application forms for greenhouse, nursery, plant dealer, florist, and landscaper categories. Which category applies still depends on the activity and location.
Vermont and Wisconsin: sales thresholds matter
Vermont’s Nursery Inspection Program generally requires an annual nursery license for persons purchasing, selling, or installing nursery stock, with an exemption for a person selling $1,000 or less in a year. Wisconsin says a person selling more than $250 per year in covered nursery stock generally needs a nursery grower or dealer license, depending on whether the plants are grown or resold.
Virginia and South Dakota: grower/dealer distinctions are explicit
Virginia requires a Nursery Operation or Dealer’s License before regulated nursery stock is offered for sale, sold, delivered, or given away. South Dakota distinguishes resident nurserymen from nursery stock dealers and can issue a separate Certificate of Inspection after official inspection.
How to determine exactly what your nursery needs
- Write down what you actually do. List whether you propagate, grow, overwinter, buy for resale, broker, install, or ship plants.
- List every sales location. Include your nursery, greenhouse, home pickup site, garden center, farmers market, temporary event, delivery vehicle, and online store where relevant.
- Check the state’s definition of nursery stock. Do not assume every live plant is regulated the same way. Trees and hardy perennials may be treated differently from annuals, houseplants, cut flowers, seeds, sod, or aquatic plants.
- Ask whether you are a grower, dealer, or both. Businesses that grow some plants and resell others may need more than one classification.
- Ask whether every location needs a separate license. Several states license by physical outlet or selling location.
- Schedule any required inspection early. A certificate may depend on a growing-season inspection, and export shipments may require inspection, testing, or treatment before a certificate can be issued.
- Check destination-state rules before interstate shipping. Your home-state nursery license does not automatically authorize every shipment into every other state.
- Check federal and foreign-country requirements before exporting. Contact the appropriate certification official before shipping internationally.
- Calendar renewals. Renewal dates vary. Some credentials follow the calendar year, some have fixed seasonal dates, and others follow their own annual licensing cycle.
Special considerations for home, backyard, and online nurseries
Operating from home does not automatically remove plant-regulatory requirements. A home nursery can still be a nursery grower, dealer, or plant seller under state law. It may also face local rules that a larger commercial site handles through a different process.
- Zoning and home occupation: confirm whether customers, signs, outdoor plant inventory, parking, deliveries, or greenhouse structures are allowed at the property.
- Sales tax: determine whether plants and related products are taxable and whether a seller’s permit is required.
- Online sales: a website, marketplace account, or social-media sale does not remove state nursery requirements. Shipping also creates destination-state compliance issues.
- Markets and pop-ups: temporary selling locations may need their own license, event permit, or addition to an existing credential.
- Plant sources: keep supplier names, invoices, inspection certificates, and other records required by your state.
- Protected or regulated plants: invasive species, noxious weeds, threatened/endangered plants, patented cultivars, and quarantined material can create separate restrictions.
If you are still planning your operation, see How to Start a Nursery Business: Plan, Grow, and Sell, How to Start Selling Plants From Home, and Starting a Backyard Nursery.
Interstate shipping: your customer’s state matters too
When plants cross state lines, the destination state’s plant-health restrictions can matter as much as your home state’s license. A shipment may be subject to a quarantine, prohibited-plant rule, pest-free-area requirement, treatment, inspection, labeling requirement, or certificate.
USDA APHIS maintains Plant Health Contacts, including State Plant Health Directors who can answer questions about pest programs and restrictions on moving plants or plant products. The National Plant Board state summaries are also a useful first stop for comparing destination-state requirements.
International shipping and phytosanitary certificates
International plant exports are a separate process. The importing country determines the phytosanitary conditions the shipment must meet. USDA APHIS explains the current process on its Plant and Plant Product Export Certificates page.
- Contact the export certification specialist or Authorized Certification Official serving your area before the shipment date.
- Confirm the destination country’s requirements for the exact plant species and commodity.
- Allow time for inspection, sampling, laboratory testing, or treatment if required.
- Use PCIT when directed by the certifying authority.
- Do not treat an ordinary nursery inspection certificate as a substitute for a required federal phytosanitary certificate.
Records a nursery should keep
- Current nursery, dealer, plant seller, or greenhouse license/registration.
- Inspection certificates and phytosanitary certificates.
- Supplier invoices and source records for purchased plants.
- Plant inventory and propagation records where required.
- Copies of quarantine compliance agreements and treatment records.
- Shipping records showing destination, plant identity, quantity, and date.
- Renewal confirmations and fee receipts.
- Pesticide application records when applicable.
A practical pre-opening compliance checklist
- Identify your state plant-regulatory agency.
- Confirm whether your plants meet the state’s definition of nursery stock.
- Determine whether you are classified as a grower, dealer, landscaper, broker, or more than one.
- Ask whether each sales location needs a separate license.
- Apply for the required nursery registration, license, permit, or certificate.
- Arrange the required nursery inspection.
- Complete state business and tax registration.
- Verify local zoning and home-business rules.
- Set up supplier and plant-source recordkeeping.
- Create a process for checking destination-state rules before accepting shipped orders.
- Set up PCIT/export procedures if you will ship internationally.
- Put renewal dates on a compliance calendar.
Bottom line: contact your state plant-regulatory office before you begin selling plants, and check destination-state rules before shipping. Treat nursery licensing, plant-health certification, ordinary business licensing, zoning, and pesticide regulation as separate compliance questions. Getting those pieces organized early is much easier than trying to correct them after inventory is moving.