Cannabis Seeds for Michigan Growers

Yes. Michigan voters passed the Michigan Regulation and Taxation of Marihuana Act (MRTMA) in November 2018, making Michigan the first Midwestern state to legalize recreational cannabis. Adults 21 and older may legally purchase cannabis seeds for personal cultivation without a permit or medical card. Triangle Hemp ships cannabis seeds directly to Michigan customers.

Yes. Triangle Hemp ships cannabis seeds to Michigan 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 naturally as days shorten in late summer. Indoors, you trigger flowering by switching to a 12-hours-on/12-hours-off schedule. They typically take longer to finish but give more control over plant size and yield.

Autoflower varieties flower automatically based on age, usually finishing 9-12 weeks from seed regardless of light schedule. Michigan's outdoor season of late May to early October makes autoflowers a practical choice — they finish faster and let you run multiple harvests or avoid early-fall frost risk. Not sure which is right for you? See our Strain Selection Guide.

CBD (cannabidiol) and CBG (cannabigerol) are non-psychoactive compounds found naturally in the cannabis plant. People commonly report CBD as calming and supportive for sleep, stress, and everyday discomfort. CBG is often described as more clarifying, associated with focus and a lighter sense of ease. Both are widely used as alternatives to pharmaceutical options for mild anxiety, inflammation, and pain.

Many growers find that blending CBD or CBG varieties with THC varieties produces a more balanced experience. Growing your own gives you direct control over what goes into your plants. Check out our Strain Selection Guide to explore our hemp varieties.

Michigan allows up to twelve plants per household under the MRTMA — one of the most generous home cultivation limits in the country. This is a household limit, not a per-person limit: multiple adults share the twelve-plant maximum. Michigan does not distinguish between mature and immature plants; all twelve count equally regardless of growth stage. No permit or plant tagging is required. Read the full Michigan home grow law breakdown for details.

Yes. Outdoor, greenhouse, and indoor cultivation are all permitted. Plants must be in a secured, enclosed area not visible from any public space. A fenced and enclosed backyard, locked outbuilding, or greenhouse all satisfy the requirement as long as plants genuinely cannot be seen from outside. Use our zone map to find your specific planting dates. See our Michigan home grow laws guide for the full breakdown.

No. Any adult 21 or older can grow at their private residence without a permit or medical card. Landlords can prohibit cultivation in lease agreements — check your lease before growing. Some municipalities may impose additional local restrictions. Read the full Michigan home grow law breakdown for complete details.

Michigan spans USDA Zones 4a-6b, with the Upper Peninsula in Zones 4a-5b and the southwestern Lower Peninsula near Lake Michigan reaching Zone 6b. The outdoor season runs roughly late May through early October. Autoflowering varieties finishing in 8-10 weeks are a reliable choice across the state, and short-season photoperiod varieties finishing in late September work well in the Lower Peninsula. The southwestern corner near Lake Michigan has the warmest, most forgiving conditions for outdoor grows. Michigan's high summer humidity makes mold-resistant genetics worth considering for outdoor plants. Enter your zip code on our zone map for your specific window, then browse our autoflowering varieties or short-season varieties.

Most Michigan outdoor growers start seeds indoors in late April to early May and transplant after the last frost, typically late May in the Lower Peninsula and early June in the Upper Peninsula. Short-season photoperiod varieties started in late April can finish in late September in most of the Lower Peninsula. Autoflowers started in late May can finish well ahead of the first fall frosts. Check your zip code on our zone map for specific frost dates, or see our germination guide for step-by-step starting instructions.