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 Barney's Farm
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Pink Kush is a hybrid based on the outstanding OG Kush genetics. This indica cannabis provides strong effects and ideal for pain and insomnia and pleasant vanilla aromas.The plant develops sparkle dense buds coated with the mass of t..


Learn more about Pink Kush
More Seeds by Humboldt Seeds
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OG Kush is a famous cannabis strain that is based on the genetics of Lemon Thai/Pakistani and Chemdawg.The plant is easy to grow. It has a small size and a sensitivity to humidity. The plant develops buds with rich tropical smell and..


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More Seeds by Spliff Seeds
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Fruity slightly earthy aroma and blueberry, sweet flavor. Heavy, compact buds. Impressive yields. Ultimate medicinal plant. Big Indica body stoner. Potential THC level high. The original Blueberry is composed of an exotic mix of gene..


Learn more about Blue Berry
More Seeds by Medical Seeds
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Canadian Kush is a new one creation of Medical seeds that based on the crossing between Purple Kush from California and Special Kush from Canada. This is a pure indica plant with a high THC level and great medical properties.This ma..


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More Seeds by Kannabia
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Purple Kush is the variety that adds the colour of wild berries to our seed bank, thanks its contrast of rich purples and greens.This is a hybrid of 70% Purple with a highly compact and richly resinous bud that draws the eye. The wai..


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More Seeds by Sensi Seeds
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Jack Herer is a regular indica/sativa hybrid that the result of the combining famous genetics of Haze, Northern Lights #5 and Shiva Skunk. The strain is a multiple winner, it took nine awards. Today Jack Herer is a recognised medica..


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More Seeds by Canuk Seeds
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Critical Mass has a very nice plant metabolism and structure, resulting in very frosty and dense buds with a sharp flavor.Critical Mass is a reworked excellent version of an old breed once known as Big Bud. This is a large yielding s..


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More Seeds by Canuk Seeds
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Original Skunk #1 was the first true stabilized hybrid to enter the Dutch Cannabis greenhouses. Sacred Seeds created it in the late 1970s from Afghani Indica, "Acapulco Gold" Mexican Sativa and Columbian Gold Sativa. For the first..


Learn more about Original Skunk #1
More Seeds by Crop King Seeds
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White Cookies is a well-balanced indica dominant hybrid that based on the genetics of outstanding White Widow and delicious Girl Scout Cookies. The result plant contains 60% indica and 40% sativa.The harvest comes after 9 weeks of fl..


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More Seeds by Spliff Seeds
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Taste sweet, earthy, like fine Hash. Smell of licorice with earthy and diesel. Tall, THC dripping buds. True Indica style. Ideal for SOG. Easy to grow. Homogenous plants. Compact budstructure. Medicinal value: muscle spasms, chronic ..


Learn more about Mega Power Plant
More Seeds by Positronic
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Positronic Cum Laude Hibridisation Cum laude is a triple hibridisation of pure sativas. Some elite clones were given to us with the intention of working to creat a stable line of pure sativa. GENEALOGY (Queen mother X Tijuana) X orig..


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More Seeds by FastBuds
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This indica dominant hybrid fills the room with its overpowering scent and packs on the buds.This high THC, low CBD, indica-dominant hybrid mixes our Grapefruit auto with our signature autoflower genetics to create a strain with the ..


Learn more about Zkittlez Auto
More Seeds by Short Stuff
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Super stinky is the 2nd ‘super auto’ strain from shortstuff seeds which builds upon the amazing advances we made with our Super Cali Haze strain. A SUPER AUTO is a true sativa auto flowering cannabis strain which takes lo..


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More Seeds by Anesia Seeds
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Banana Kush Auto is a autoflowering strain of the latest generation that provides big yields, a great gentic stability, a wonderful intense banana flavour and a enormous potency. Banana Kush Auto is an indica dominant autoflowering s..


Learn more about Banana Kush Auto
More Seeds by Auto Seeds
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The legendary Californian medical strain Girl Scout Cookies has just been given the Auto Seeds treatment. We scoured the world for the best GSC mothers and we think we've done the original proud.We made the cross using our incredibly..


Learn more about Girl Scout Cookies Auto
More Seeds by Bomb Seeds
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One of the most talked about and arguably strongest strains of recent years, is the Insanely sticky Gorilla Glue. Huge amounts of resin and a great sour piney aroma make this a great variety to work with; so we have given it the full..


Learn more about Gorilla Bomb
More Seeds by Dr. Underground
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We are talking about a hybrid created exclusively for medical use, although the effects sativas seek active in this plant we have created otherwise. Designed from the demands of various medicinal growers, is one of the earliest known..


Learn more about PainKiller
More Seeds by Short Stuff
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Tha Shiznit is an Auto strain of the highest possible quality. The Urban Dictionary describes the phrase, ‘Tha Shiznit’ as ‘The greatest, the best ever, simply the shit…’ and this autoflowering strain matches up to that des..


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More Seeds by Zambeza
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Big Bud XXL Autoflowering was created by crossing hand-selected genetics of OG Kush with Ruderalis. It took Zambeza’s breeders several years, and countless generations of plants, until their heavy-yielding autoflowering strain was ..


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More Seeds by White Label
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Getting the best results from the ever-reliable Skunk family is now easier than ever with White Label’s feminized Skunk #1 Automatic strain - a new auto-flowering hybrid bred from one of the world’s favorite marijuana varieties. ..


Learn more about Skunk #1 Automatic
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 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 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