Cannabis Breeders
577 verified breeders — browse genetics by brand
Find a Breeder
Cannabis breeders are the architects of genetics. They develop, cross, select, and stabilise strains — giving each one its name, its character, and its consistency. When you grow a strain, you're growing someone's work: years of phenotype selection, backcrossing, and real-world testing distilled into a seed.
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It's worth understanding the distinction between breeders and seed banks. Breeders create genetics; seed banks retail them. A seed bank like Seedsman or Herbies might stock strains from hundreds of breeders under one roof. Some companies do both — Royal Queen Seeds, Fast Buds, and Dutch Passion breed and sell direct. Knowing who actually created your seeds helps you evaluate consistency, support, and long-term availability.
Quality genetics start with choosing the right breeder for your goals. An autoflower specialist like Fast Buds produces very different results from a legacy photoperiod house like Sensi Seeds. Our database covers 574+ breeders from 25+ countries, catalogued from 25 years of grow reports on Grasscity.forum — real growers, real results.
New to cannabis genetics? Our glossary covers key terms like feminized, autoflower, and F1 hybrid — so you can make sense of breeder descriptions and choose with confidence.
Frequently Asked Questions
Common questions about cannabis breeders and genetics.
What's the difference between a cannabis breeder and a seed bank?⌄
A breeder develops, crosses, and stabilises cannabis genetics — they create the strains. A seed bank acts as a retailer, purchasing seeds from multiple breeders and selling them to the public. Some companies do both (like Royal Queen Seeds or Fast Buds), but many seed banks simply stock and distribute strains from dozens of independent breeders. When you buy seeds, you're almost always buying a breeder's genetics — the seed bank is just the storefront.
How do I choose the right breeder for my grow?⌄
Start with your goals: if you want fast harvests, look for breeders who specialise in autoflowers (like Fast Buds or Dutch Passion). If you want maximum yield and control, find breeders known for stable photoperiod feminized genetics (like Sensi Seeds or Barney's Farm). Read grow reports — not just marketing copy. Our database pulls from 25 years of Grasscity.forum grow data, which reflects real-world results across thousands of grows.
What are F1 hybrid cannabis seeds?⌄
F1 (first filial generation) hybrids are the direct offspring of two genetically distinct parent strains. They're bred for hybrid vigour — often growing faster, stronger, and more uniformly than either parent. True F1s are produced by crossing two stable inbred lines (IBLs), which gives predictable, consistent results. Many premium breeders now sell F1 certified seeds, which are more expensive to produce but offer exceptional uniformity across a crop. See our glossary for more on F1, F2, and IBL terminology.
Why are some breeders more expensive than others?⌄
Price reflects genetics quality, breeding investment, and brand reputation. Developing a stable F1 line takes years of selective breeding and phenotype testing. Established breeders like Sensi Seeds or Dutch Passion invest heavily in this process, which is reflected in seed prices. Cheaper seeds may come from less stable crosses or less rigorous selection — which doesn't always mean worse results, but it does mean more phenotype variation. You're paying for predictability as much as genetics.
What does 'stabilized genetics' mean in cannabis breeding?⌄
Stabilized genetics means a strain has been bred over multiple generations until its traits — growth pattern, flowering time, yield, cannabinoid profile — are consistent and predictable from seed to seed. An unstabilized strain might produce wildly different phenotypes even within the same pack. Breeders achieve stability through repeated backcrossing (BX) or inbreeding, selecting only plants that express the desired traits. See our glossary for a full explanation of terms like IBL, BX, and F-generation notation.
Can I buy directly from breeders, or only through seed banks?⌄
Some breeders sell direct — Fast Buds, Royal Queen Seeds, ILGM, and Dutch Passion all run their own online stores with direct shipping. Others, especially smaller or boutique breeders, distribute exclusively through third-party seed banks like Seedsman or Herbies. Buying direct can mean better prices, fresher stock, and direct access to limited releases. Buying through a seed bank gives you access to dozens of breeders in one order, often with combined shipping.
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A
A Golden State
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Abakaba Heirlooms
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ABF Genetics
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ACE Seeds
Spain
Advanced Seeds
Spain
Aeque Genetics
Canada
Aficionado French Connection
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Aficionado Seed Bank
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Aficionado Seed Collection
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Agri-Kind
—
Alien Genetics
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Alien Labs
—
AlphaFem Seeds
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ALTVM
—
Amaze Cannabis
—
Amsterdam Genetics
Netherlands
Amsterdam Marijuana Seeds AMS
Netherlands
Anesia Seeds
Spain
Annunaki Genetics
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Apex Seeds
United States
Apex Solventless
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Apothecary Genetics
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Arcana Collective
—
Archive Seed Bank
United States
Art Genetix
Spain
Astrul
—
Atlas Seed
United States
Authentic Genetics
United States
Auto Seeds
United Kingdom
Aztech
United Kingdom
B
B.C. Grown Seeds
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B.O.G. Seeds
United States
BackpackBoyz
—
Barney's Farm
Netherlands
Bask Triangle Farms
Spain
Bay Exclusives Seeds
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BC Bud Depot
Canada
Beaver Seeds
United States
Beleaf Cannabis
United States
Beyond Top Shelf
—
Big Buddha Seeds
United Kingdom
Big Dog Exotic Cannabis Seeds
—
Big Head Seeds
United Kingdom
Big Seedbank
Netherlands
Biological Seeds
Spain
Black Tuna Seeds
Colombia
BlackFarm Genetix
Spain
Blackskull Seeds
Spain
Blimburn Seeds
Spain
Blk.seeds
Spain
Bloom Seed Co
United States
Bob Marley Seeds
Jamaica
Bodhi Seeds
United States
Bomb Seeds
Netherlands
Bonguru Seeds
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Boss Status Genetics
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Bred by 42
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Breed Bros
Spain
Brother Mendel’s Selection
United States
Brothers Grimm Seeds
United States
Brothers In Farms
United States
BSB Genetics
United Kingdom
BSF Seeds
United States
Buddha Seeds
Spain
Bulk Genetics
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BulkSeedBank
Spain
Bulletproof Genetics
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C
California Artisanal Medicine
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California Bean Bank
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California Seed Bank
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Caligen
United States
Camp River Cannabis (CRG Pharma)
Canada
Cannabeizein
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Cannabiogen Seeds
Spain
Cannabiorganic genetics
Chile
Cannarado Genetics
United States
Cannaventure Seeds
United States
Canuk Seeds
Canada
Cape Roots
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Captain Red Beard Seeds
United States
Capulator
United States
Caucasian Seeds
Georgia
CBD Seeds
Spain
CBD-crew
Spain
Ceres seeds
Netherlands
ChaScience
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Cherry Kola Farms
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Cipher Genetics
United States
Clackamas Coots
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Clade 9
—
Claybourne Co
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Clearwater Genetics
United States
Clout King
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Club Riot Seeds
Spain
Coastal Genetics
United States
Coastal Mary Seeds
Canada
Colorado Seed Inc.
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Compound Genetics
United States
Connected Cannabis Co
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Connoisseur Genetics
Netherlands
Conscious Cultivators
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Conscious Genetics
United States
Cookies Seed Bank
United States
Copenhagen Seed Company
Denmark
CopyCat Genetics
United States
Council Collective
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Covert Genetics
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Craft Farmer
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Crane City Cannabis
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Cream Crop Co.
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Cream of the Crop Seeds
Spain
Cresco Labs
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Critical Mass Collective
United States
Crockett Family Farms
United States
Cronja
—
Crop King Seeds
Canada
Crossbone Genetics
Canada
Cult Classics Seeds
United States
Curio Wellness
—
D
Dankmatter Genetics
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Dark Heart Nursery
United States
Dark Horse Genetics
United States
Dark Owl Seeds
United States
Decibel Gardens
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Deep Space Creations
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Delicious Seeds
Spain
Delta 9 labs
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Denver Relief
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Deschutes Growery
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Desert Grown Farms
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Dewey Cannabis
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DimeBag Seed Company
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Dinafem
Spain
Dirty Bird Genetics
United States
Discreet Seeds
United Kingdom
Divine Genetics
United States
Divine Seeds
Canada
DJ Short
Canada
DNA Crew
United States
DNA Genetics
Netherlands
Doctor's Choice
Canada
Doja Seeds
United States
Dojo Seed Co
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Dominion Seed Company
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Don Merfos Exotics
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Dr. Krippling
United Kingdom
Dr. Seeds
Canada
Dr. Underground
Spain
Dragons Flame Genetics
United States
Drohammad Seeds
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Dungeons Vault Genetics
United States
Dutch Flowers
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Dutch Genetics
Netherlands
Dutch Passion
Netherlands
Dutch-Headshop Seeds
Netherlands
Dutchfem
Netherlands
Dying Breed Seeds
United States
Dynasty Seeds
United States
E
East Fork Cultivars
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Elev8 Seeds
United States
Elite Seeds
Spain
Emerald Spirit Botanicals
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Emerald Triangle Seeds
United States
Envy Genetics
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Equilibrium Genetics
United States
Esensia Gardens
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Eskobar Seeds
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ETHOS Genetics
United States
Eureka Seed Org
Spain
Eurogrow
Spain
Eva Seeds
Spain
Evermore Cannabis Company
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Evermore Genetics
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Exclusive Seeds Bank
Spain
Exclusive Seeds Colorado
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Exotic Genetix
United States
Exotic Seed
Netherlands
Expert Seeds
Ireland
F
Fair Seeds
Czech Republic
Fancy Weed
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Fast Buds
United States
Federation Seeds
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Female Seeds
Netherlands
Feminised Seeds Company
United Kingdom
Fidels Seed Co
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Fig Farms
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Fire Bros.
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First Class Genetics
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Fiya Farmer
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Flash Seeds
Spain
Flora Farms
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Flying Dutchmen
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Fountainhead Seeds
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Franchise Genetics
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Freedom of Seeds
Spain
Freedom Seeds
United Kingdom
French Touch Seeds
France
Fresh Coast Seed Co
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Full Moon Genetics
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Fusion Seeds
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Future Genetix
Canada
G
G.O.A.T Genetics
United States
G13 Labs
United Kingdom
Gabriel Cannabis
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Gage Green
United States
Galenas
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Ganja Farmer
Spain
Garden of Grease
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Garden of Green
Ireland
Garrison Lane
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GB Strains
Spain
Gea Seeds
Spain
Gecko Seeds
Spain
Genehtik
Spain
GeneSeeds - NemeSeeds
Spain
Genetic Avenue
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Genetic Designer
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Genofarm
Spain
GG strains
United States
Gnome Automatics
United States
Golden Beaver Farms
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Golden State Genetics
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Goldenseed
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Good Chemistry Nurseries
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Gooniez
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Gotti
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Grand Cru Genetics
Spain
Grand Daddy Purp
United States
Grandiflora Genetics
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Grandma’s Genetics
Spain
Grass O Matic
Spain
Grassroots
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Greasi Genetics
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Green Bodhi
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Green Bud Seeds
Spain
Green Devil Genetics
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Green Dot Labs
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Green House Seed Co.
Netherlands
Green Lantern Seeds
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Green Mountain Collective
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Green Team Genetics
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Green Tiger Collective
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Greenline
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Greenpoint Seeds
United States
GreenSeal Cannabis Co
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Greenshock Farms
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Grounded Genetics
Spain
Grow More Fire Genetics
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Grow Sciences
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Growers Choice Seeds
United States
Growers Lab
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Growing Pains
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Growing Passion
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H
Happy Bird Seeds
United States
Happy Cultivators
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Hawaiian Budline
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Head Seeds
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Heavyweight Heads
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Heavyweight Seeds
Spain
Hendrx
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Herbies Seeds
Spain
Herbies USA Express
Spain
Heroes of the Farm
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HGH Seeds
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High Grade Farms
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High Maintenance
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High Speed Buds
Spain
Hoku Seed Co
United States
Holy Sacrament Selections
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Holy Smoke Seeds
United Kingdom
Homegrown Cannabis Co
United States
Homegrown Fantaseeds
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Homegrown Genetics
United States
Homegrown Natural Wonders
United States
Honey Sticks Genetics
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HortiLab Seeds
Netherlands
House of the Great Gardener
Canada
Humboldt CSI
United States
Humboldt Seed Company
United States
Humboldt Seed Organization
United States
HY-PRO
Netherlands
Hy-seeds
Netherlands
Hyp3rids
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Hypno Seeds
Iran
Hytek
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I
J
K
Kaiser Chief
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Kalashnikov Seeds
Russia
Kannabia Seed Company
Spain
Karma Genetics
Netherlands
Katsu Seeds
United States
KC Brains
Netherlands
Keraseeds
Netherlands
Khalifa Genetics
Ireland
Khush Kush
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Kind Meds
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Kingdom Organic Seeds
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Kiwi Seeds
Netherlands
Knock Out Genetics
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Kounter Kulture
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Kre8 Genetics (formerly Greenlife Seeds)
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Kush4Breakfast
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L
M
Maconha Seeds Bank
Chile
Mad Scientist Genetics
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Mamiko Seeds
Spain
Mandala
Spain
Marijuana Clones Online
United States
Mass Medical Strains
United States
Massive Creations
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Master Sensei Genetics
United States
Maven Genetics
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Medical Seeds
Spain
Mediseed Man
Australia
Mendoja Farms
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Mephisto Genetics
United Kingdom
Ministry of Cannabis
Spain
Mister C Seeds
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MM Genetics
Spain
Monster Genetics
United States
Moon Valley Cannabis
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Mosca Seeds
United States
Mota Rebel Genetics
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Moxie 710
United States
Mr. Hide Seeds
Spain
Mr.Nice
United Kingdom
MSNL Seeds
Netherlands
Mycotek Seed Company
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N
O
P
Pacific North West Roots
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Pacific Reserve
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Palomar Craft Cannabis
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Paradise Seeds
Netherlands
Perfect Tree
Spain
Pev Seeds
Spain
Pheno Addicts / Flavor Designer
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Pheno Finder Seeds
Netherlands
Phillip Hague (aka Tierra Rojo)
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Philosopher Seeds
Spain
Phoenix Seeds
United Kingdom
Pinnacle Genetics
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Pioneer Nuggets
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Positronics Seeds
Spain
Powerzzzup Genetics
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Preferred Gardens
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Premium Cultivars
United States
President Seeds
South Africa
Prolific Coast Seeds
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Pua Mana 'Ohana
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Puff Puff Pass
United States
Pure Instinto
Spain
Pure Sunfarms
—
Purple Caper Seeds
United States
Purple City Genetics
United States
Pyramid Seeds
Spain
Q
R
R-Kiem Seeds
Spain
Rare Dankness
United States
Raw Garden
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Raw Genetics
United States
Real Gorilla Seeds
United Kingdom
Realm Cannabis
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Rebel Grown
—
RedEyed Genetics
—
Reggae Seeds
Spain
Relentless Genetics
United States
Reserva Privada
United States
Reservoir Seeds
—
Resin seeds
Spain
RHYTHM
—
Riot Seeds
—
Ripper Seeds
Spain
Robin Hood Seeds
United States
Roc Bud Inc Genetics
United States
Rocket Seeds
United States
Rogue Buds
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Roll One
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Ronin Seeds
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Royal Queen Seeds
Netherlands
Runtz Crew
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S
Safari Seed Co
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Sagarmatha
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Samsara Seeds
Spain
Sci-Fi Genetix
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Sea to Sky Cannabis
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Seattle Chronic Seeds
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Secret Society Seed Co
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Seed Cartel
—
Seed Junky Genetics
United States
Seedkeepers
—
Seeds Genetics Co.
Netherlands
Seeds Mafia
Romania
Seedsline
Italy
Seedsman
United States
Seedstockers
Spain
SeedSupreme
United States
Sensi Seeds
Netherlands
Sensible Seeds
United Kingdom
Serious Seeds
Netherlands
Shaman Genetics
Spain
Shauncron
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Sherbinskis
—
Short Stuff
Spain
Shuga Seeds
—
Silent Seeds
France
Silver Leaf
United Kingdom
Silver River Seeds
Argentina
SinCity Seeds
United States
Skunk Brothers
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Slanted Farms Seed Company
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Snow High Seeds
—
SoFem Genetics
United States
Solfire Gardens
United States
Soma Seeds
Netherlands
Sonoma Seeds
Canada
Source Genetics
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South Fork Seed Collective
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Southern Humboldt Seed Collective
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Speed Seeds
Spain
Speedrun Seeds
United States
Spliff Seeds
Netherlands
Square One Genetics
United States
STIIIZY
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Strain Hunters
Netherlands
STRNG Seeds
United States
Sumo Seeds
Netherlands
Sundial Cannabis
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Sunwest Genetics
Canada
Super Dope
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Super Natural Seeds
United Kingdom
Super Sativa Seed Club
Netherlands
Super Siberia
Spain
Super Strains
Netherlands
Superseed Company
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Sure Fire Selections
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Surfr Seeds
United States
Swamp Boys Seeds
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Sweet Seeds
Spain
Symbiotic Genetics
United States
T
T.H.Seeds
Netherlands
Tanie Sianie
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Tastebudz Genetics
United Kingdom
Taylor Lane Farms
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Teds Budz
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Terp Treez Co.
United Kingdom
Terphogz
United States
TerpyZ Mutant Genetics
Netherlands
TGA Genetics Subcool Seeds
United States
THC Design
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THClones
—
The Apothecarium
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The Bakery Genetics
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The Bakery Seed Co.
United States
The Bank
—
The Bank Genetics
United States
The Bulldog Seeds
Netherlands
The Cali Connection
United States
The Capitan's Connection
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The Cure Company
—
The Devils Harvest Seeds
Netherlands
The Fire Department
—
The Grateful Seeds
Spain
The High Chameleon
Spain
The Kush Brothers
Spain
The Oklahoma Outlawz
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The Plug Seedbank
Spain
The Real Seed Company
India
The Seed Bank
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The Seed Kompany
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The Standard
—
The Vault Seed Bank
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Thicc Cannabis Co.
—
Thug Pug Genetics
United States
Thunderfudge
—
Tiki Madman
United States
Tom Hill Cannabis Seeds
—
Top Dawg Seeds
United States
Top Tao Seeds
Czech Republic
Trichome Jungle Seeds
—
Trikoma Seeds
Spain
Tropical Seeds Company
United States
Trulieve
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Tsunami Seeds
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Twenty20
United States
Twisted Tree Autoflowers
United States
Twisty Seeds
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