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 Flying Dutchmen
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Flying Dutchmen White Widow is one of the most potent cannabis on Earth and is named for the abundance of trichomes, giving the plant a whitish tint. It is also one of the more powerful strains of marijuana (alongside AK-47 and Afgha..


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More Seeds by Short Stuff
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Mi5 is a wonderful creation from the Autoflowering seed breeder ‘STITCH’ who says “Mi5 stands for My Indoor number 5 which is the highest selection of an AK47 cross borne after hard and long selection of breeding. The 5th cross..


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More Seeds by Positronic
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Afghan Express Positronics Seeds HIBRIDISATION Afghan Express, is a 3rd generation autoflowering strain developed to astonish everybody with her power. Our afghani parental was an old Wernard clon, selected for its great THC/CBD rati..


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More Seeds by Kannabia
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Kannabia Seeds Big Band is an ultra skunk that is presented by the well known Kannabia industry. Big Band came a successful result of a long experiment in an attempt to create a marijuana which would deliver a knock out buzz combined..


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More Seeds by Spliff Seeds
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Fruity blueberry skunky taste. Happy energetic high with very relaxing body stone. Medium sized plant with a deep berry overtone. Excellent for relieving stress, depression, headaches, nausea and pain.CBD 6.3% / THC 7.6 = 1-1 Ratio.B..


Learn more about CBD Spliff Berry
More Seeds by Spliff Seeds
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Earthy, pungent aroma and fruity, skunky taste. Fastflowering strain. Impressive yielding strain with rockhard buds. Longlasting happy-up high and bodybuzz. Potential THC level medium-high. Everybody loves Dutch Cheese, so we took a ..


Learn more about Spliff Cheese
More Seeds by KC Brains
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KC Brains White KC is mostly indica. It is KC Brains' marijuana cross between a male KC606 and a Real White Lady (White Widow, Afghani and KC33). Her seed has been developed specially for indoor cannabis gardens, this is a strain tha..


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More Seeds by FastBuds
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This is a Fast Buds take on an all-time classic. The original AK-47 strain was created in Holland in 1992 by combining landrace genetics from Mexico, Columbia, Thailand, and Afganistan. This Sativa-dominant hybrid came to the US just..


Learn more about Lemon AK
More Seeds by Flying Dutchmen
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Flying Dutchmen Temple Haze is a sativa dominated marijuana cross of Original Haze and a Nepalese Hash. Her roots stretch across the whole world, from South America towards South East Asia and through the Himalayas. By crossing the g..


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More Seeds by Spliff Seeds
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Fantastic fruity aroma and bubblegum flavor. Short and stocky structure. Vigorous growing stage. Fastflowering in 8 weeks. Rockhard, sticky buds. Medicinal painkiller. Rushing, energetic high. Potential THC level high. Bubblegun has ..


Learn more about Bubblegun
More Seeds by KC Brains
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KC Brains Brazil x K.C. is a stable sativa cross of Mango Vermelho from Paranaiba, Brazil and K.C. 606. Her cannabis seeds were designed specifically for indoor cultivation - this cannabis strain doesn't grow higher than 90 cm, givin..


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More Seeds by Anesia Seeds
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A-Train is a very potent cross of two popular medical cannabis varieties, an Arcata Trainwreck from California and a Mazar-I-Sharif male whose genetic origins are in Afghanistan. This Cannabis strain is a 50/50 hybrid of indica and s..


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More Seeds by Anesia Seeds
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hocolate Haze is a cross of a selected very tasty and potency Chocolate Thai and the best Haze Queen males from the gene pool of ANESIA Seeds. Chocolate Haze impresses with its stunning chocolate flavor that comes from the abundant t..


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More Seeds by Spliff Seeds
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Fruity, flower, aroma. Fruity and pineapple taste. Resistent to high EC. Short and bushy structure. Resin monster. One giant cola with some side buds. Impressive CBD level. Longlasting bodystoned high. Potential THC level high. Creat..


Learn more about Crystal White
More Seeds by Spliff Seeds
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Cinnamon aroma and sweet and spicy flavor. Huge resin production. Massive budding beast. Soil or coco is ideal medium. Medicinal strain. Longlasting, cerebral high with a nice body buzz. Potential THC level high. Jack F1 is a Dutch c..


Learn more about Jack F1
More Seeds by Anesia Seeds
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Strawberry Kush is a crossing of an original Hindu Kush with a Strawberry and convinces with very potent buds that are hard like a rock and covered with massive resin layers. Strawberry Kush requires about 60 days flowering time indo..


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More Seeds by Auto Seeds
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A strain of supreme pedigree, Auto Chemdog is undoubtedly one of the most powerful strains in our collection.The result of crossing Auto #1 with an original Chemdog clone, Auto Chemdog is an easy to grow highly potent strain with a k..


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More Seeds by ACE Seeds
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After years of hard work and intense selections with sativas from all around the world, we can confirm that Malawi is the most powerful and psychedelic landrace sativa we know. Its dense flowers of enormous trichomes compete with the..


Learn more about MALAWI
More Seeds by MSNL
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Gifted to us as a clone, this strain is an outstanding cross of an original Sensi Skunk#1 and an unknown Californian Indica. However the overall characteristics and dominance of the smoke is definitely a Sativa. Even though Green Cra..


Learn more about Green Crack
More Seeds by Zamnesia
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Sticky Beast Automatic by Zamnesia Seeds is an expertly designed strain where some of the best cannabis genetics come together for a unique experience and all-around fantastic product. Even seasoned cannabis enthusiasts will be delig..


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More Seeds by Short Stuff
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If you are looking for a big production heavy hitting auto-flower strain then look no further than Auto Bud Canon. This strain boasts AK47 and critical mass in its genetic makeup so you know it is going to yield big and pack a real p..


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More Seeds by Positronic
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Positronic Supercheese HIBRIDISATION Will take you back to the old school flavours, this old skunk will amaze everybod. To keep the cheese touch and remain those old flavours, we hibridated this plant with another homonimous clon of ..


Learn more about Supercheese