Cannabis Seeds for California Growers

Yes. California legalized adult-use cannabis under Proposition 64, passed by voters in November 2016. Adults 21 and older may legally purchase cannabis seeds for personal cultivation without a medical card or special permit. Triangle Seeds ships cannabis seeds directly to California customers.

Yes. We ship cannabis seeds to California home growers. Orders are packaged discreetly and typically go out within 1-2 business days. Shopping around first? See where to buy cannabis seeds online and what to look for in a seed bank. 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. California's long growing season in most regions supports both types outdoors with ease. Autoflowers are especially useful for growers who want multiple harvests per season or need to work within a tighter outdoor window at higher elevations. 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.

State law allows six plants per residence. This is a household limit, not a per-person limit — multiple adults sharing a home still share a single six-plant maximum. Plants must be in a locked, secure space not visible from public areas. No permit or plant tagging is required at the state level. Read the full California home grow law breakdown for details.

Yes. This is California's most important home grow nuance. State law protects indoor cultivation of up to six plants in a private residence — local governments cannot ban it. But outdoor growing is subject to local ordinances, and many cities and counties have restricted or banned it entirely. Before setting up an outdoor grow, check your city or county's municipal code. When in doubt, an indoor setup is fully protected regardless of where you live. See our California home grow laws guide for more.

No state permit is required. However, some cities and counties have added local permit requirements for home cultivation. Check with your local government before growing outdoors. If you rent, California landlords retain the right to prohibit cultivation — check your lease before starting a grow. Read the full California home grow law breakdown for complete details.

California spans USDA Zones 5-11, with one of the most varied and cannabis-friendly climates in the country. The Central Valley, Southern California inland areas, and the famous Emerald Triangle in Northern California (Humboldt, Mendocino, Trinity counties) are among the best outdoor cannabis growing regions anywhere. Most of coastal and inland California supports both full-season photoperiod varieties and autoflowers with ease. High-elevation Sierra Nevada grows have a shorter window where autoflowers and short-season varieties perform best. The foggy, cool coastal areas from San Francisco north require mold-resistant genetics. Enter your zip code on our zone map for your specific dates, then browse our full-season varieties, short-season varieties, or autoflowering varieties.

Timing varies significantly across California's climate zones. Southern California and the Central Valley growers can start seeds indoors as early as late February to March and transplant outdoors in April. Northern California growers typically target a May transplant after the last frost risk passes. The Emerald Triangle's legendary long season supports photoperiod plants started in April finishing in October or November. Coastal growers should prioritize mold-resistant varieties given marine layer humidity. Check your zip code on our zone map for specific dates, or see our germination guide for step-by-step starting instructions.