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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Phantom OG is the result of crossing between sativa dominant Phantom Cookies and outstanding OG Kush genetics. This is a well-balanced indica/sativa hybrid that contains 45% indica and 55% sativa genetics.The plant demonstrates beaut..


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More Seeds by T.H.Seeds
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The A-train is the result of the combining of Afghani Mazar I Sharif and the clone-only Arcata e-32 Trainwreck. Train-wreck needs support. It's recommended SCROG. This is a very fragile and delicate variety that is sensitive to the a..


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More Seeds by Dinafem
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Power Kush gives a greater stability. It's a powerful strain with a hight THC content and a good balance of sativa and indica.The plant grows well, the leaves are big, wide and long. The buds are covered in white and orange hairs. It..


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More Seeds by Dutch Passion
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Blueberry is the original, classical cannabis with fruity aromas and blue colors on the leaves and buds. The Blueberry genetics consists of 80% Indica and 20% Sativa and dates back to the 70’s. The plant has good yields in the ide..


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More Seeds by DJ Short
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Toe Jam is the result of the combination of two outstanding genetics - classic Cheese and DJ Short Flo. The plant develops a small structure and produces fragrant buds coated with mass of resin. This is the ideal choice for indoor gr..


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More Seeds by Reserva Privada
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R.K.S. is a feminised mostly sativa plant with a strong smell and a mass of resin. The strain is based on the crossing between Afghani, Columbian and Thai.This green plant is an ideal choice both for indoors and outsoors. It produce..


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More Seeds by MSNL
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The result was a very stable feminized cross. As the name suggests the plant produces huge buds with high levels of THC. Crossing with Ice kept THC levels ridiculously high while harvests remain near the levels of the original. This ..


Learn more about THC Bomb
More Seeds by Dinafem
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Amnesia CBD is a feminised, CBD-rich and sativa dominant cannabis strain. It's the result of crossing between an Original Amnesia and a strain with high level of CBD. It has many therapeutic properties, for example stress relief.The ..


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More Seeds by Seedsman
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Cheese Feminised Seeds by the cannabis seeds breeder Seedsman, is a Photoperiod Feminised marijuana strain. This Mostly Sativa strain produces a High 400-500 gr/m2 yield. These seeds are ready to harvest in 9-10 Weeks in October. Thi..


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More Seeds by Kannabia
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An Amnesia x Lemon Skunk x Jack Herer cross, a trio that’s now available to the grower and the most demanding gourmet.Its shape leaves no room for doubt, full and robust, its rebellious green fills with resin, reminiscent of al..


Learn more about Amnesi-K
More Seeds by Expert Seeds
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OG Kush × White Dwarf are two ground braking Auto Strains. Because of the OG Kush influence, the heavy dense buds are totally covered and dripping with resin that stinks to high heaven. The intense flavours and aromas from the ..


Learn more about OGesus Auto
More Seeds by DNA Genetics
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LA Chocolat is an indica dominant strain that is based on the cross between Chocolope and LA Confidential. LA Chocolat is improved version of its parents with the power of the LA Confidential and the yields of the Chocolope. It con..


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More Seeds by Crop King Seeds
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Sour Jack is a sativa dominant strain that contains 70% sativa and 30% indica genetics. The outstanding Sour Diesel and Jack Herer were crossed to create this high yielding and potent strain.The harvest comes after 9 weeks of flwoeri..


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More Seeds by Canuk Seeds
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Canuk Seeds' Kushy Kush is an indica strain and takes 6 weeks to flower.Typical of the completely indica dominant genetics of the plant Kushy Kush grows into a small bushy plant that produces a THC level of 22%-24%.It can be harveste..


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More Seeds by Exotic Seed
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Only most advanced smokers, herbalists and patients may try this tantalizing, bitter-sweet symphony of Larry OG x Kosher Kush as a result of a cooperation with fellow German rap artist Herzog. Herz OG smells like the forest spirit di..


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More Seeds by Kannabia
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Kritikal-K features giant, tight, lush emerald-green buds and is a heavy resin producer. This strain is powerfully narcotic and relaxing in effect with a strong sweet, fruity taste and lemon-sorbet aroma.This strain is one of the lar..


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More Seeds by Reserva Privada
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Tora Bora is a mostly indica hybrid that the result of mix of two legendary strains - LA Confidential and X18 Pure Pakistani genetics.The flowering takes 8-9 weeks and the harvest brings good yields of 450-550g/m2. The plant produces..


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More Seeds by Reserva Privada
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OG Kush is a classic strain in Reserva privada collection. It is a legendary genetics from USA.The plant smells so strong, so it's recommended to use anti-smell filters. The plant has a strong streching, requiring constant monitoring..


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More Seeds by DNA Genetics
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Rocklock is the ideal combining of two heavy genetics Warlock and Rockstar.The result is an indica dominant strain containing 80% indica genetics. The plant develops large buds covered in crystals and has a good resin production.The..


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More Seeds by Barney's Farm
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ShiskaBerry is the result of the crossing between Blueberry and Afghan. This is a unique indica dominant creation with enormous yields and effects.The flowering period takes only 8-9 weeks indoors and the harvest brings 500-600 gr/m&..


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More Seeds by Dinafem
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Big Skunk (Critical +) and OG Kush were crossed for creation Big Kush. The result is heavy-yield with strong aroma of Big Skunk lemon and notes of OG Kush odors.It's a good balanced strain which showcases properties both sativa and i..


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More Seeds by Reserva Privada
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Kandy Kush is a сlassic variety of the OG Kush that was crossed with Train Wreck (T4). The result is a mostly indica strain containing 60% Indica and 40% Sativa genetics.The Kandy Kush is one of the most resinous strain in Reserva p..


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More Seeds by T.H.Seeds
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Bubblegum is one of the first strain in T.H. Seeds collection.  It was created in 1993. Today Bubblegum is an outstanding and famous cannabis variety with a big amount of awards.The plant demonstrates a good stabillity. It has a qui..


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More Seeds by Reserva Privada
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Kosher Kush is the wonderful variety from California. It has plenty awards and a world recognition. The plant produces good yields even in the hands of beginners. Kosher Kush is easy to trim and suitable for different feeding schedul..


Learn more about Kosher Kush