By Matt Spitzer | Last updated: May 2026
New Hampshire is the only state in New England where recreational cannabis remains illegal. The state’s House of Representatives has passed legalization bills multiple times — including in January 2026 — only to see the Senate block them. A medical cannabis program has been active since 2013, but it does not permit home cultivation. Hemp cultivation is legal, and New Hampshire growers apply through the USDA federal licensing program rather than a state agency. What any New Hampshire resident can do right now is purchase cannabis seeds, including high-THC varieties, for collecting and to be prepared if and when New Hampshire legalizes home cultivation. Cannabis seeds are legally classified as hemp under the 2018 Farm Bill — the seed itself contains no meaningful THC regardless of what the plant would eventually produce. This post covers New Hampshire’s hemp licensing process, current cannabis law, and the ongoing legislative battles that could change things.
Disclaimer: Cannabis and hemp laws change. This post reflects our best understanding of New Hampshire law as of May 2026. Always consult a licensed attorney before making any growing decisions.
Table of Contents
- The Short Version
- Can You Grow Cannabis at Home in New Hampshire?
- Hemp Is Legal to Grow in New Hampshire With a USDA License
- How to Get a USDA Hemp Producer License in New Hampshire
- What the License Requires
- What Is Changing: New Hampshire Cannabis Legislation in 2025 and 2026
- CACR 19 — The Constitutional Amendment Route
- New Hampshire’s Medical Cannabis Program
- Outdoor Growing in New Hampshire
- Penalties for Growing Without a License
- Frequently Asked Questions
The Short Version
| Home cannabis cultivation | Illegal |
| Medical cannabis program | Yes — active since 2013, no home grow |
| Recreational cannabis | Illegal — only New England state without legal adult-use |
| Possession of ¾ oz or less | Civil violation — $100 fine (first and second offense) |
| Possession of more than ¾ oz | Class A misdemeanor — up to 1 year in jail |
| Hemp cultivation | Legal — USDA license required (no state program) |
| Hemp licensing authority | USDA Domestic Hemp Production Program (HeMP platform) |
| USDA license fee | None |
| Background check required | Yes (FBI Identity History Summary) |
| Prior drug felony disqualifier | Yes — within the last 10 years |
| Seeds legal to purchase | Yes — including high-THC varieties |
| HB 186 — Legalization bill | Passed House 208-135, killed by Senate March 5, 2026 |
| CACR 19 — Constitutional amendment | In committee — would bypass governor if passed by legislature |
Can You Grow Cannabis at Home in New Hampshire?
No. Home cultivation of cannabis is illegal in New Hampshire. The state decriminalized possession of three-quarters of an ounce or less in 2017 — a first or second offense is a civil violation with a $100 fine and no jail time. A third offense within three years carries a $300 fine. But possession of more than three-quarters of an ounce is a Class A misdemeanor carrying up to one year in jail and a fine of up to $2,000. Cultivation is treated as a separate and more serious offense.
New Hampshire’s medical cannabis program, which has been active since 2013, does not include any home cultivation provision. Even registered patients must purchase from one of the state’s licensed alternative treatment centers (ATCs).
Hemp Is Legal to Grow in New Hampshire With a USDA License
Hemp — cannabis with no more than 0.3% delta-9 THC by dry weight — is legal to cultivate in New Hampshire under a USDA producer license. New Hampshire made history in February 2020 as the first state from which the USDA accepted applications for the federal Hemp Domestic Production Program. The state chose not to establish its own USDA-approved state hemp plan, so New Hampshire has always operated under the federal program.
This means all New Hampshire hemp producers apply directly to the USDA — the same system now used by Kansas, Nebraska, and Mississippi after those states stepped back from state-level licensing.
How to Get a USDA Hemp Producer License in New Hampshire
All New Hampshire hemp producer license applications are submitted through USDA’s Hemp eManagement Platform (HeMP) at hemp.ams.usda.gov.
- Create a Login.gov or USDA eAuthentication (eAuth) account at eauth.usda.gov.
- Log in to the HeMP platform and create your producer account.
- Submit a USDA Hemp Application through HeMP, providing the address and GPS coordinates of each production site, the acreage or square footage for each lot, and a description of your growing operation.
- Complete the FBI Identity History Summary (criminal background check). The FBI provides instructions through the HeMP application process. This requires fingerprinting. Applicants with a felony related to a controlled substance within the last 10 years are not eligible.
- Register your growing location with your local USDA Farm Service Agency (FSA) office and report your acreage each growing season.
- Before harvest, select a USDA-certified sampling agent from the official USDA directory to collect compliance samples, and select a DEA-registered testing laboratory to receive those samples.
The USDA does not charge a license fee. You can reach the USDA Domestic Hemp Production Program at farmbill.hemp@usda.gov or (888) 721-4367 with questions. UNH Extension’s hemp resources page is a useful local reference for New Hampshire growers navigating the program.
What the License Requires
Under the USDA program, New Hampshire hemp growers must meet federal compliance requirements:
Pre-harvest sampling. A USDA-certified sampling agent must collect compliance samples from your lot within 30 days of your anticipated harvest date. All results are reported through HeMP. Do not harvest before receiving your results.
FSA acreage reporting. Annual crop acreage reports must be submitted to your local USDA Farm Service Agency office.
Sampling agent and lab costs. You pay the USDA-certified sampling agent and DEA-registered testing laboratory directly. These are the primary ongoing compliance costs under the USDA program.
Annual production reporting. Reports covering acreage planted, acreage harvested, and yield are submitted through HeMP.
Non-compliant crops. Crops testing above 0.3% delta-9 THC must be destroyed. First negligent violations carry no criminal penalties; repeated or intentional violations can result in license revocation and federal referral.
What Is Changing: New Hampshire Cannabis Legislation in 2025 and 2026
New Hampshire’s legislature has been closer to legalization than nearly any other holdout state — the House has repeatedly passed bills with strong margins, only to see the Senate block them. The pattern continued in 2026.
HB 186 — Full legalization with home grow (passed House, killed by Senate, March 2026). The most significant cannabis bill of the session, HB 186 passed the House on January 7, 2026 by a 208-135 vote. If enacted, the bill would have legalized possession of up to two ounces of cannabis flower, 10 grams of concentrates, and products with up to 2,000 milligrams of THC for adults 21 and older. It would also have allowed adults to grow up to six cannabis plants at home, with no more than three mature at one time. A new Cannabis Commission would have been established to license and regulate the industry. Retail sales would have been taxed at 8.5%, with localities having opt-in referendums on whether to allow retail stores. The Senate killed the bill on March 5, 2026, by a 15-9 party-line vote — 15 of 16 Republican senators voted to table it.
HB 198 — Possession-only legalization (stalled). This simpler bill, which passed the House in March 2025 on a 208-125 vote, would have legalized possession for adults 21 and older without establishing a commercial market. It was killed by the Senate Judiciary Committee in April 2025.
Medical cannabis expansion bills (mixed results). The House passed bills in 2025 to expand medical cannabis possession limits (HB 190) and to legalize home cultivation for medical patients (HB 53). Both were tabled by the Senate. In 2026, SB 468 would allow ATCs to grow in greenhouses — potentially reducing costs and prices for patients — and is still moving.
Governor Ayotte’s position. Governor Kelly Ayotte, elected in November 2024, has explicitly stated she will veto any legalization bill that reaches her desk, and said her position would not change even if the federal government moves forward with cannabis rescheduling. This effectively blocks all legislative legalization as long as she holds the veto and the Senate remains aligned with her position.
70% public support. A statewide poll found 70% of New Hampshire residents support legalizing cannabis for recreational use. The gap between public opinion and legislative outcome is one of the widest in the country.
CACR 19 — The Constitutional Amendment Route
With Governor Ayotte promising to veto any legalization bill, advocates and legislators have turned to a mechanism she cannot block: a constitutional amendment.
CACR 19, sponsored by Rep. Jonah Wheeler (D), would establish a constitutional right to possess a modest amount of cannabis for personal use for adults 21 and older. In New Hampshire, a constitutional amendment is placed on the ballot if both the House and Senate approve it by more than 60% — and the governor has no role in the process. If it makes the ballot, the amendment would need to pass with more than two-thirds support from voters in the November 2026 election.
As of May 2026, CACR 19 has been referred to the House Criminal Justice and Public Safety Committee. Achieving 60% in both chambers is a high bar — but it represents the most viable path to any cannabis reform in New Hampshire given Governor Ayotte’s veto threat. Watch for committee and floor vote results as the 2026 session continues.
New Hampshire’s Medical Cannabis Program
New Hampshire’s Therapeutic Cannabis Program was established by HB 573, signed into law in July 2013. It was one of the first medical cannabis programs in New England. The program is administered by the New Hampshire Department of Health and Human Services (DHHS) and currently has seven licensed ATCs (alternative treatment centers) operating statewide.
Qualifying patients with one of the program’s approved medical conditions can register with DHHS and purchase cannabis products from a licensed ATC. Recent expansions to the program include:
In 2024, the list of qualifying conditions was expanded to include generalized anxiety disorder, and any healthcare professional licensed to prescribe drugs to humans was authorized to recommend medical cannabis — broadening access significantly. Adults 21 and older with terminal or debilitating illness can also now access medical cannabis.
Registered patients can purchase cannabis flower, concentrates, edibles, tinctures, and other approved products. Home cultivation is not permitted. Patients must carry their registration card when in possession of medical cannabis.
Outdoor Growing in New Hampshire
New Hampshire spans USDA hardiness zones 3b through 6b, with the White Mountain region in the north in zones 3b and 4a, and the southern tier near Nashua and Manchester reaching zone 6b. The outdoor growing season runs from late May through September in most of the state, with a shorter frost-free window in the mountains.
New Hampshire’s relatively short growing season makes variety selection important for licensed hemp growers. Photoperiod hemp strains that mature late in October can push against early frost risk in most of the state, particularly in the north.
Autoflowering hemp strains — which finish in 70 to 90 days regardless of light cycle — are well suited to New Hampshire’s climate. They allow growers to plan a precise harvest window well before the first frost, and can be planted later in the season once frost risk has passed. For licensed hemp growers in the southern tier, there may be room for an early and a late planting in the same season.
If you are a licensed hemp grower looking for genetics suited to New Hampshire’s climate, our USDA zone map tool can help you identify your zone and planting window. We carry CBD seeds for outdoor production, and if you want to be ready for when New Hampshire’s laws change, you can browse our full seed catalog — including high-THC feminized varieties. The seeds themselves are legally classified as hemp and are legal to purchase and ship to New Hampshire today.
Penalties for Growing Without a License
Cannabis cultivation in New Hampshire is treated as a more serious offense than simple possession. While possession of three-quarters of an ounce or less is a civil infraction, cultivation bypasses that tier entirely.
Growing cannabis without authorization is generally treated as a Class A misdemeanor or felony depending on the scale of the operation. Manufacturing or distributing cannabis carries Class B felony charges at the higher end — up to seven years in prison and $25,000 in fines.
Growing hemp without a USDA producer license is also illegal under federal law.
Frequently Asked Questions
Is it legal to grow cannabis at home in New Hampshire?
No. Home cultivation of cannabis is illegal in New Hampshire in 2026. There is no recreational program and no home grow provision in the medical cannabis program. New Hampshire is the only New England state where adult-use cannabis remains fully illegal.
How do New Hampshire hemp growers get licensed?
New Hampshire has never operated its own state hemp licensing program. All New Hampshire hemp producers must apply through the USDA Domestic Hemp Production Program using the HeMP platform at hemp.ams.usda.gov. New Hampshire was the first state from which the USDA accepted applications under the federal program, in February 2020.
Why hasn’t New Hampshire legalized cannabis despite the House passing it?
The New Hampshire Senate has repeatedly blocked legalization bills that passed the House. In 2026, HB 186 passed the House 208-135 but was killed by the Senate 15-9 along party lines. Governor Kelly Ayotte has also stated she will veto any legalization bill, making the constitutional amendment route (CACR 19) the most viable path forward.
What is CACR 19?
CACR 19 is a proposed constitutional amendment that would establish a right to possess a modest amount of cannabis for personal use for adults 21 and older. If approved by more than 60% of both the House and Senate, it would go directly to voters — bypassing the governor — and would need two-thirds voter approval to pass. As of May 2026, it is in committee.
Does New Hampshire have a medical cannabis program?
Yes. New Hampshire’s Therapeutic Cannabis Program has been active since 2013. Qualifying patients can purchase cannabis from seven licensed ATCs statewide. The program was expanded in 2024 to include generalized anxiety disorder and to allow any prescribing healthcare professional to make recommendations. Home cultivation is not permitted.
Can I buy cannabis seeds in New Hampshire?
Yes. Cannabis seeds — including high-THC feminized varieties — are legal to purchase in New Hampshire. Cannabis seeds are legally classified as hemp under the 2018 Farm Bill — the seed itself contains no meaningful THC regardless of what the plant would eventually produce. Many New Hampshire residents purchase seeds now for collecting and to be ready if and when the state legalizes home cultivation. Triangle Seeds ships feminized cannabis seeds, THC seeds, and CBD seeds to New Hampshire. Browse our full catalog.
About the Author
I’m Matt, co-founder of Triangle Seeds. I’ve been growing commercially since 2013 and started Triangle Seeds in 2017 with my business partner Chase. We ship seeds nationwide. Call or text me at (919) 410-6945. Learn more about Triangle Seeds.
Sources
- USDA Domestic Hemp Production Program
- UNH Extension — Hemp Production in New Hampshire
- New Hampshire DHHS — Therapeutic Cannabis Program
- Marijuana Policy Project — New Hampshire
- NORML — New Hampshire Senate Kills HB 186 (March 2026)
- Marijuana Moment — New Hampshire Senate Kills HB 186 (March 2026)
- GraniteLeaf Cannabis — CACR 19 Overview (January 2026)
