Cannabis Seeds for New Hampshire Growers

Yes. 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, so purchasing seeds — including high-THC feminized varieties — is legal in New Hampshire. Triangle Seeds ships cannabis seeds directly to New Hampshire customers.

Yes. Triangle Seeds ships cannabis seeds to New Hampshire home growers. Orders are packaged discreetly and typically go out within 1-2 business days. Questions about your order? Text or call us M-F, 10-6 EST at (919) 410-6945.

Cannabis plants are either male or female. Only female plants produce the buds (flowers) you're growing for. Feminized seeds are bred to produce female plants almost exclusively, so you're not wasting space, time, or resources on males that need to be removed. All of the seeds we sell are feminized.

Photoperiod varieties flower in response to a change in light schedule. Outdoors, they begin flowering as days shorten in late summer — in New Hampshire, that means harvest in late September through October. Indoors, you trigger flowering by switching to a 12-hours-on/12-hours-off schedule. They give more control over plant size and yield but take longer to finish.

Autoflower varieties flower automatically based on age, finishing 9-12 weeks from seed regardless of light schedule. New Hampshire's relatively short frost-free season makes autoflowers a particularly strong fit for licensed hemp growers — they allow a precise harvest window well before the first frost, and in the southern tier can support an early and a late planting in the same season. Not sure which is right for you? See our Strain Selection Guide.

CBD (cannabidiol) is a non-psychoactive compound found naturally in the cannabis plant, commonly reported as calming and supportive for sleep, stress, and everyday discomfort — without the high associated with THC. CBD seeds are the primary variety grown commercially under New Hampshire's USDA federal hemp licensing program. Home growers can also purchase seeds now to be ready if New Hampshire legalizes home cultivation in the future. Browse our CBD seeds or use the Strain Selection Guide to find the right variety.

No. Home cultivation of cannabis is illegal in New Hampshire in 2026. 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 — but cultivation was not included in that reform. Growing cannabis without authorization is generally treated as a Class A misdemeanor or felony depending on scale. There is no home grow provision in the medical cannabis program. Many New Hampshire residents are purchasing seeds now to be ready if and when that changes. Read the full New Hampshire home grow law breakdown.

New Hampshire is the only New England state without legal adult-use cannabis — surrounded by Maine, Massachusetts, and Vermont, all of which have full recreational programs. The House of Representatives has passed legalization bills multiple times. In January 2026, HB 186 passed the House 208-135 with strong bipartisan support, including home cultivation of up to six plants. The Senate killed it on March 5, 2026 by a 15-9 party-line vote — 15 of 16 Republican senators voted to table the bill. Governor Kelly Ayotte, elected in November 2024, has explicitly stated she will veto any legalization bill. A 2026 poll found 70% of New Hampshire residents support legalization — one of the widest gaps between public opinion and legislative outcome in the country.

HB 186, passed by the House 208-135 in January 2026 and killed by the Senate in March 2026, would have legalized adult-use cannabis for adults 21 and older and allowed home cultivation of up to six plants per residence, with no more than three mature at one time. It would also have legalized possession of up to two ounces of flower, 10 grams of concentrate, and products containing up to 2,000 milligrams of THC. A Cannabis Commission would have been established to oversee licensing and regulation, with retail sales taxed at 8.5%.

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. The key reason it matters: in New Hampshire, a constitutional amendment goes directly to voters if both the House and Senate approve it by more than 60% — the governor has no role and cannot veto it. This makes CACR 19 the only viable path to cannabis reform while Governor Ayotte holds the veto. If it clears both chambers at 60% and is placed on the November 2026 ballot, it would then need two-thirds voter support to pass. As of May 2026, CACR 19 has been referred to the House Criminal Justice and Public Safety Committee.

Yes. New Hampshire's Therapeutic Cannabis Program has been active since 2013 — one of the first medical programs in New England. Seven licensed alternative treatment centers (ATCs) operate statewide. Qualifying patients can purchase flower, concentrates, edibles, tinctures, and other approved products. In 2024, the program was expanded to include generalized anxiety disorder as a qualifying condition, and any healthcare professional licensed to prescribe drugs was authorized to recommend medical cannabis. Home cultivation is not permitted. Patients must carry their registration card when in possession of medical cannabis.

New Hampshire has never operated its own state hemp licensing program. All New Hampshire hemp producers apply through the federal USDA Domestic Hemp Production Program using the Hemp eManagement Platform (HeMP) at hemp.ams.usda.gov. New Hampshire holds a notable distinction: it was the first state from which the USDA accepted applications under the federal program, in February 2020. The process is the same as for Kansas, Nebraska, and Mississippi growers — no state agency is involved. The USDA does not charge a license fee, and federal licenses are valid for three years. An FBI Identity History Summary background check and FSA grow site registration are required. See the full New Hampshire hemp licensing walkthrough for step-by-step details.

The USDA does not charge a license fee — making New Hampshire one of the most cost-accessible states for hemp licensing entry. The primary costs are a USDA-certified sampling agent for pre-harvest compliance samples and a DEA-registered testing laboratory to analyze them, both paid directly with costs varying by acreage and lab. An FBI fingerprint background check is required at application and at the three-year renewal.

New Hampshire spans USDA zones 3b through 6b — one of the widest ranges for any state in this series. The White Mountains in the north fall in zones 3b and 4a with a very short frost-free window. The central Lakes Region sits in zones 5a and 5b. The southern tier near Manchester and Nashua reaches zones 6a and 6b, with a growing season from late May through early October. Given the short outdoor window across most of the state, autoflowers are the strongest fit for licensed hemp growers statewide. Photoperiod varieties can work in the southern tier with careful timing, finishing in late September to early October. In the central and northern regions, autoflowers and short-season strains are the only reliable outdoor choice. Enter your zip code on our zone map for your specific window, then browse our autoflowering varieties, short-season varieties, or CBD seeds.

In the southern tier near Manchester and Nashua (zones 6a-6b), start seeds indoors in mid-April and transplant outdoors after your last frost — typically mid-to-late May. Photoperiod varieties started in May can finish in late September to early October in this zone. In the central Lakes Region (zones 5a-5b), target a late May transplant and rely on autoflowers or short-season strains to finish before October frosts. In the White Mountains and northern areas (zones 3b-4b), last frost can extend into early June — autoflowers started in early June can still complete a full cycle before fall. Check your zip code on our outdoor planting tool for your exact dates, or see our germination guide for step-by-step starting instructions.