Cannabis Breeders
322 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 320+ 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
ACE Seeds
Spain
Advanced Seeds
Spain
Aeque Genetics
Canada
AlphaFem Seeds
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Amsterdam Genetics
Netherlands
Amsterdam Marijuana Seeds AMS
Netherlands
Anesia Seeds
Spain
Apex Seeds
United States
Archive Seed Bank
United States
Art Genetix
Spain
Atlas Seed
United States
Authentic Genetics
United States
Auto Seeds
United Kingdom
Aztech
United Kingdom
B
B.O.G. Seeds
United States
Barney's Farm
Netherlands
Bask Triangle Farms
Spain
BC Bud Depot
Canada
Beaver Seeds
United States
Beleaf Cannabis
United States
Big Buddha Seeds
United Kingdom
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
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
BulkSeedBank
Spain
C
Caligen
United States
Camp River Cannabis (CRG Pharma)
Canada
Cannabiogen Seeds
Spain
Cannabiorganic genetics
Chile
Cannarado Genetics
United States
Cannaventure Seeds
United States
Canuk Seeds
Canada
Captain Red Beard Seeds
United States
Capulator
United States
Caucasian Seeds
Georgia
CBD Seeds
Spain
CBD-crew
Spain
Ceres seeds
Netherlands
Cipher Genetics
United States
Clearwater Genetics
United States
Club Riot Seeds
Spain
Coastal Genetics
United States
Coastal Mary Seeds
Canada
Compound Genetics
United States
Connoisseur Genetics
Netherlands
Conscious Genetics
United States
Cookies Seed Bank
United States
Copenhagen Seed Company
Denmark
CopyCat Genetics
United States
Cream of the Crop Seeds
Spain
Critical Mass Collective
United States
Crockett Family Farms
United States
Crop King Seeds
Canada
Crossbone Genetics
Canada
Cult Classics Seeds
United States
D
Dark Heart Nursery
United States
Dark Horse Genetics
United States
Dark Owl Seeds
United States
Delicious Seeds
Spain
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
Dr. Krippling
United Kingdom
Dr. Seeds
Canada
Dr. Underground
Spain
Dragons Flame Genetics
United States
Dungeons Vault Genetics
United States
Dutch Genetics
Netherlands
Dutch Passion
Netherlands
Dutch-Headshop Seeds
Netherlands
Dutchfem
Netherlands
Dying Breed Seeds
United States
Dynasty Seeds
United States
E
F
G
G.O.A.T Genetics
United States
G13 Labs
United Kingdom
Gage Green
United States
Ganja Farmer
Spain
Garden of Green
Ireland
GB Strains
Spain
Gea Seeds
Spain
Gecko Seeds
Spain
Genehtik
Spain
GeneSeeds - NemeSeeds
Spain
Genofarm
Spain
GG strains
United States
Gnome Automatics
United States
Grand Cru Genetics
Spain
Grand Daddy Purp
United States
Grandma’s Genetics
Spain
Grass O Matic
Spain
Green Bud Seeds
Spain
Green House Seed Co.
Netherlands
Greenpoint Seeds
United States
Grounded Genetics
Spain
Growers Choice
Netherlands
Growers Choice Seeds
United States
H
Happy Bird Seeds
United States
Heavyweight Seeds
Spain
Herbies Seeds
Spain
Herbies USA Express
Spain
High Speed Buds
Spain
Hoku Seed Co
United States
Holy Smoke Seeds
United Kingdom
Homegrown Cannabis Co
United States
Homegrown Genetics
United States
Homegrown Natural Wonders
United States
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
Hypno Seeds
Iran
I
J
K
L
M
Maconha Seeds Bank
Chile
Mamiko Seeds
Spain
Mandala
Spain
Marijuana Clones Online
United States
Mass Medical Strains
United States
Master Sensei Genetics
United States
Medical Seeds
Spain
Mediseed Man
Australia
Mephisto Genetics
United Kingdom
Ministry of Cannabis
Spain
MM Genetics
Spain
Monster Genetics
United States
Mosca Seeds
United States
Moxie 710
United States
Mr. Hide Seeds
Spain
Mr.Nice
United Kingdom
MSNL Seeds
Netherlands
N
O
P
Paradise Seeds
Netherlands
Perfect Tree
Spain
Pev Seeds
Spain
Pheno Finder Seeds
Netherlands
Philosopher Seeds
Spain
Phoenix Seeds
United Kingdom
Positronics Seeds
Spain
Premium Cultivars
United States
President Seeds
South Africa
Puff Puff Pass
United States
Pure Instinto
Spain
Purple Caper Seeds
United States
Purple City Genetics
United States
Pyramid Seeds
Spain
Q
R
R-Kiem Seeds
Spain
Rare Dankness
United States
Raw Genetics
United States
Real Gorilla Seeds
United Kingdom
Reggae Seeds
Spain
Relentless Genetics
United States
Reserva Privada
United States
Resin seeds
Spain
Ripper Seeds
Spain
Robin Hood Seeds
United States
Roc Bud Inc Genetics
United States
Rocket Seeds
United States
Royal Queen Seeds
Netherlands
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Samsara Seeds
Spain
Seed Junky Genetics
United States
Seedkeepers
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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
Short Stuff
Spain
Silent Seeds
France
Silver Leaf
United Kingdom
Silver River Seeds
Argentina
SinCity Seeds
United States
SoFem Genetics
United States
Solfire Gardens
United States
Soma Seeds
Netherlands
Sonoma Seeds
Canada
Speed Seeds
Spain
Speedrun Seeds
United States
Spliff Seeds
Netherlands
Square One Genetics
United States
Strain Hunters
Netherlands
STRNG Seeds
United States
Sumo Seeds
Netherlands
Sunwest Genetics
Canada
Super Natural Seeds
United Kingdom
Super Sativa Seed Club
Netherlands
Super Siberia
Spain
Super Strains
Netherlands
Surfr Seeds
United States
Sweet Seeds
Spain
Symbiotic Genetics
United States
T
T.H.Seeds
Netherlands
Tastebudz Genetics
United Kingdom
Terp Treez Co.
United Kingdom
Terphogz
United States
TerpyZ Mutant Genetics
Netherlands
TGA Genetics Subcool Seeds
United States
The Bakery Seed Co.
United States
The Bank Genetics
United States
The Bulldog Seeds
Netherlands
The Cali Connection
United States
The Devils Harvest Seeds
Netherlands
The Grateful Seeds
Spain
The High Chameleon
Spain
The Kush Brothers
Spain
The Plug Seedbank
Spain
The Real Seed Company
India
Thug Pug Genetics
United States
Tiki Madman
United States
Top Dawg Seeds
United States
Top Tao Seeds
Czech Republic
Trikoma Seeds
Spain
Tropical Seeds Company
United States
Twenty20
United States
Twisted Tree Autoflowers
United States
