The genetics of the cannabis seeds you plant are responsible for dictating both the speed and quality of the marijuana plant it will grow into. It even plays a role in the potency and flavor profile when the marijuana is being consumed, by affecting the quality and quantity of cannabanoids and terpenes.

Each strain of marijuana is best explored personally, to experience the different taste profiles and effects. However even within the same marijuana strain, there are large amounts of discrepancies with their genetics - and this is where the reputable seed breeding companies come into play: There are countless factors leading to the production of seeds with strong genetics and with the addition of so many new strains it has become more common to find unstable genetics. However, each year the genetics of existing strains continue to grow stronger - with the breeders doubling down and breeding out undesirable traits.

We have collected a list of contenders for the top genetics to be growing during 2020.
You can learn more about each strain by clicking into it, or browsing more information about the breeder including their complete product line.

More Seeds by Auto Seeds
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Gorilla Glue Auto is our auto flowering take on the classic Cannabis Cup winning legend. By crossing a carefully selected phenotype of the original Gorilla Glue with our Auto #1 we’ve managed to create one of the most powerful ..


Learn more about Gorilla Glue Auto
More Seeds by Heavyweight Seeds
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With a large number of autoflowering strains now available, it can be really difficult to know which one to choose. Well, look no further; the Heavyweight team have been busy perfecting the ultimate auto!We’re proud to announce the..


Learn more about Jackpot Auto
More Seeds by Zambeza
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Genetics for the famous Power Plant were captured by a group of Dutch growers on a trip to South Africa, back in the 90’s. They managed to breed a strain that was soon a popular choice in coffee shops of the Netherlands, most likel..


Learn more about Power Plant XL
More Seeds by Short Stuff
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Tha Shiznit has been one of our bestselling strains for the last couple of years thanks to the fact that it has THC levels of over 20% and that in 1 test grow a single plant produce 520 grams of dried buds. When looking for strains t..


Learn more about Auto Gorilla Shizzle
More Seeds by White Label
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Experience the joy of growing a top quality Haze strain with much less work! White Haze Automatic is a feminized hybrid of auto-flowering Cannabis ruderalis and an outstanding example of our Cannabis Cup-winning White Haze strain whi..


Learn more about White Haze Automatic
More Seeds by Flash Seeds
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A floral fighter of a plant, Onyx Auto from Flash Auto Seeds puts up a strong fight against pesky pests. Not only a resilient warrior, the feminized favorite is also an incredible pot provider; harboring a treasure trove mouth wateri..


Learn more about Onyx Reloaded
More Seeds by Biological Seeds
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Auto Amnesia Haze by Biological Seeds is the result of a long process of selection to change some aspects that made the original Amnesia Haze unappealing for many growers.​Our geneticists have worked on two main critical factors of..


Learn more about Auto Amnesia
More Seeds by Auto Seeds
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Kush Doctor combines the most intense flavours and a superb uplifting high. To create this beauty, we first crossed the Legendary OG Kush with our Ultra Lemon Haze, making a perfectly balanced citrus OG mother. This was stabilized an..


Learn more about Kush Doctor
More Seeds by Kannabia
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Kannabia Gnomo . Growing autoflowering plants indoors in Eastern Europe makes sense because long photoperiods are needed to counter the cold of winter, to maximise the plants’ vegetative growth before taking them outside in the..


Learn more about Gnomo Auto
More Seeds by KC Brains
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She is a stable hybrid of an Acapulco, Hawai 93, Mango2001 and KC 36. More production for every square meter is one of the characteristics of this strian. KC Brains seed selectors combined the best qualities of those sativas, indicas..


Learn more about Brains Damage
More Seeds by Flash Seeds
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Super Auto Chaze is the most potent and productive autoflowering plant to date. Stitch with his special touch with autoflowering plants made a cross of great quality that will outdo the autoflowering plants available nowadays . An in..


Learn more about Chaze Super Auto
More Seeds by Ocean Grown Seeds
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Vader started with his development of a signature OG Kush in 2006 starting with SFV and Larry OG against the Mr. E male from the “Mystery Kush” line, although the females had slowly been replaced over the years the male a..


Learn more about Vader OG
More Seeds by Auto Seeds
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Sweet CBD Auto is our most pure CBD rich strain, bred specifically to produce the maximum levels of CBD and almost no THC in a breath taking 2 months. With levels of CBD up to 15% and THC lower than 1%, this super swift autoflower ha..


Learn more about Sweet CBD Auto
More Seeds by Zambeza
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Genetics of Super Silver Haze managed to win three High Times Cannabis Cups in a row, in the late 90’s. Today, it’s still very likely to find this strain on the menu of a Dutch coffee shop. The reason for this international succe..


Learn more about Super Silver Haze
More Seeds by Zambeza
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Genetics of Super Silver Haze managed to win three High Times Cannabis Cups in a row, in the late 90’s. Today, it’s still very likely to find this strain on the menu of a Dutch coffee shop. The reason for this international succe..


Learn more about Super Silver Haze
More Seeds by Royal Queen Seeds
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Green Punch is an indica and sativa hybrid by Royal Queen Seeds, made by crossing two all-star American strains: Green Crack and Purple Punch. The result is a super potent strain that delivers an uplifting initial euphoria before mel..


Learn more about Green Punch
More Seeds by White Label
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This chunky subtropical Sativa is named after the South African port city of Durban and has been the dominant strain of dagga in the surrounding hills and plains for longer than anyone can remember. The genotype is favoured by local ..


Learn more about Durban
More Seeds by Anesia Seeds
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Auto Bubblegum is a potent cross of a carefully selected Bubblegum and a Auto Granddaddy Purple. By back crossing for several generations we have been able to ensure the stability of this automatic strain and created a genetic autofl..


Learn more about Auto Bubblegum
More Seeds by Delta 9 labs
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Super Star is a double back cross of the legendary Sensi Star utilizing two breeding Sensi Star males. She gets her name from the amount of crystals she produces as well as the enlightening high which brings you the feeling of being ..


Learn more about Super Star
More Seeds by Flying Dutchmen
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Flying Dutchmen Skunk Classic is an interesting and highly potent flashback to the original Skunk plants and their forebears, to a time when the Sativa elements of the famous hybrid were more pronounced. It contains the original Colu..


Learn more about Skunk Classic
More Seeds by Kannabia
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Kannabia Seeds BCN Diesel is another new marijuana strain created within Kannabia feminized seed collection. This new cannabis is a stable hybrid of Diesel No.2 and Malawi and certainly packs an almighty punch with 20% + THC. Cannabi..


Learn more about BCN Diesel
More Seeds by Dr. Underground
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Our plant par excellence, it is an absolutely psychedelic experience. This is the opposite of our range Painkiller, while the other is for medicinal use, this is for fun, laughing and out of reality to a higher level of understanding..


Learn more about Crystal M.E.T.H.
More Seeds by Flying Dutchmen
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Flying Dutchmen G Force is another stable marijuana hybrid from Flying Dutchman seed bank. Flying Dutchman cannabis breeders combined the highest qualities of the two world known strains, Northern Lights and The Skunk, and got an abs..


Learn more about G Force
More Seeds by Zambeza
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Candy Caramelo Fast Flowering is a sophisticated 3-way crossing of Maple Leaf Indica x White Rhino x Blueblack. This strain is indica-dominant, relatively short in size, and generously yielding. It’s ideal for growers seeking fast ..


Learn more about Candy Caramelo Fast Flowering