Marijuana Genetics

Find the best cannabis strains available on our website. To do this, we have made a selection of some of the most valued and known genetics such as Critical, Zkittlez, Kush and Skunk. The best seeds of each of these marijuana genetics are in this section.†

Cannabis Strains Best Sellers

Kritikal Bilbo cannabis plant

Kritikal Bilbo

(326)
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€7.18 Antes €8.45 -15%
Critical feminized seed

Critical Feminized Bulk

(816)
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€3.00
Auto Critical GB XXL feminized

Auto Critical GB XXL

(1146)
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€3.00
RS11 - Rainbow Sherbert

RS11 - Rainbow Sherbert

(23)
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€7.20 Antes €9.00 -20%
OG Kush 100% Feminized - Bulk Seeds - GB

OG Kush Feminized Bulk

(33)
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€3.00
Critical Mass Regular by Mr Nice Regular - GB

Critical Mass Regular

(14)
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€61.20 Antes €68.00 -10%

All the catalog: Cannabis Strains

Kritical Bilbo Auto by Genehtik - GB

Kritikal Bilbo auto

(7)
€7.65 Antes €9.00 -15%
Zkittlez

Zkittlez Feminized Bulk

(36)
€3.50
Lemon Skunk marijuana plant

Lemon Skunk

(42)
€20.40 Antes €24.00 -15%
Critical CBD Feminized bulk seeds - GB

Critical CBD

(37)
€3.00
Auto Super Skunk XXL 100% feminized in bulk - Grow Barato

Auto Super Skunk XXL

(33)
€3.00
Buy Kritical GB seeds- GB The Green Brand

Kritical GB

(109)
€3.00
OG Kush CBD has high CBD levels - Grow Barato

OG Kush CBD GB Strains

(7)
€7.20 Antes €9.00 -20%
Critical+ 2.0 by Dinafem - Grow Barato

Critical + 2.0

(54)
€24.08 Antes €28.00 -14%
Critical x Somango 100% Feminized seeds - GB

Critical x Somango

(139)
€3.00
Auto Chocolate Skunk

Auto Chocolate Skunk

(5)
€17.55 Antes €19.50 -10%
View Auto OG Kush automatic seeds in bulk - GB

Auto OG Kush

(32)
€3.00
View Skunk 1 marijuana plant

Skunk 1

(18)
€14.40 Antes €18.00 -20%
View Critical kush marijuana plant

Critical Kush Barney's Farm

(3)
€31.45 Antes €37.00 -15%
View Bestial Skunk cannabis plant

Bestial Skunk

(16)
€24.30 Antes €27.00 -10%
View Gorilla Zkittlez Cannabis Plant

Gorilla Zkittlez

(14)
€11.90 Antes €14.00 -15%
View Auto Critical cannabis plant

Auto Critical

(4)
€17.95 Antes €19.95 -10%
View Killer Kush Fast Version cannabis plant

Killer Kush F1 Fast Version®

(4)
€18.32 Antes €22.90 -20%
View Critical 47 Express marijuana plant

Critical 47 Express

(7)
€24.00 Antes €30.00 -20%
View Auto Critical cannabis plant

Auto Critical - CBD Seeds

(3)
€6.40 Antes €8.00 -20%
View Critical Fast bulk seeds - GB The Green Brand

Critical Fast

(4)
€3.50
View Super Skunk marijuana plant

Super Skunk Sensi Seeds

(22)
€16.80 Antes €21.00 -20%
View Critical Neville Haze cannabis plant

Critical Neville Haze

(9)
€7.65 Antes €9.00 -15%
View Kritikal Bilbo x Ak47 marijuana plant

Kritikal Bilbo x Ak47

(4)
€34.00 Antes €40.00 -15%
View Zombie Kush cannabis plant

Zombie Kush

(10)
€21.60 Antes €24.00 -10%
View Blue Critical Autoflowering cannabis plant

Blue Critical Autoflowering

(9)
€68.99
View Critical Poison Fast cannabis plant

Critical Poison Fast

(5)
€24.50
View OBG Kush Faster Flowering Marijuana Plant

OGB Kush Faster Flowering

(7)
€12.60 Antes €14.00 -10%
View Watermelon Zkittlez Auto Barney's Farm

Watermelon Zkittlez Auto

(6)
€27.20 Antes €32.00 -15%
View Platinum OG

Platinum OG

(16)
€7.20 Antes €9.00 -20%
View Pakistan Chitral Kush Regular cannabis plant

Pakistan Chitral Kush Regular

(6)
€58.50 Antes €65.00 -10%
View Kritikal K Cannabis Plant

Kritikal K

(4)
€26.10 Antes €29.00 -10%
View Super Critical marijuana plant

Super Critical

(7)
€20.40 Antes €24.00 -15%
View Exotic Kush Cannabis Plant

Exotic Kush

(4)
€40.50 Antes €45.00 -10%
View Red Critical Auto

Red Critical Auto

(6)
€14.00
View Auto Zkittlez 100% Feminized Seeds - GB

Auto Zkittlez

(30)
€3.50
View Watermelon Zkittlez Marijuana Plant

Watermelon Zkittlez

(5)
€27.20 Antes €32.00 -15%
View Skunk 11 cannabis plant

Skunk 11

(7)
€22.46 Antes €24.95 -10%
View Critical Sensi Star cannabis plant

Critical Sensi Star

(4)
€8.50 Antes €10.00 -15%
View Critical X Cannabis Plant

Critical X

(29)
€7.00
View Pink Kush Cannabis Plant

Pink Kush

(3)
€35.06 Antes €41.25 -15%
View Auto Skunk XXL 100% - Bulk seeds -GB

Auto Skunk XXL

(43)
€3.50
View Critical Jack cannabis plant

Critical Jack Feminized Bulk

(12)
€3.00
View Critical Widow Feminized bulk seeds - GB

Critical Widow

(16)
€3.00
View Critical+ 2.0 Autoflowering

Critical+ 2.0 Autoflowering

(7)
€21.50 Antes €25.00 -14%
View Chocolate Kush marijuana plant

Chocolate Kush

(7)
€24.50
View Hindu Kush Automatic Cannabis Plant

Hindu Kush Automatic

(9)
€12.73 Antes €15.91 -20%
View Auto Critical Orange Punch Cannabis Plant

Auto Critical Orange Punch

(6)
€14.36 Antes €15.95 -10%
View Auto Zkittlez marijuana plant

Auto Zkittlez - Advanced Seeds

(7)
€8.00
View Banana Zkittlez Marijuana Plant

Banana Zkittlez

(6)
€18.39 Antes €22.99 -20%
View Sweet Critical CBD logo

Sweet Critical CBD

(12)
€24.50
Marijuana Genetics

What type of cannabis genetics should I buy?


The best cannabis genetics are those that suit the customer's needs. That's why GB's catalog includes a wide variety of Skunk, Critical Zkittlez, and Kush seeds, so every grower and cannabis seed lover can buy their favorite. Each genetic offers distinct and differentiated characteristics, so it won't be a great effort to find the right one. Do you prefer the most resinous, the most potent, or the most productive? Find the perfect genetic for you.


Indoor and outdoor cannabis genetics


Generally, all genetics in the GB The Green Brand catalog perform well both indoors and outdoors. However, the yields achieved outdoors will not be replicated indoors with any cannabis seed of these genetics. On the other hand, growing indoors will offer an unbeatable production/time ratio, especially for Critical and Skunk genetics. Therefore, it will depend on the grower's preferences, the climate of their geographical area, and the specifications of the chosen variety.


The best cannabis genetics for outdoors


Under suitable climatic conditions, almost any of GB's genetics develops to its maximum potential, as they all share the ability to produce extraordinarily. Zkittlez stands out for its resistance and adaptability outdoors, as does Skunk for its strong Landrace origin. Critical and Skunk are known for their enormous and heavy buds. Whatever your preference, you'll find the best varieties in the GB catalog.

Super Skunk by Sensi Seeds


A Sativa-dominant hybrid created by crossing Skunk #1 and an Afghan strain, resulting in a very productive strain with trichome-laden buds and a strong lemon flavor.

Critical 100% Feminized Seeds


One of the most potent Critical strains on the market with a characteristic lemon flavor and aroma. Its ease of cultivation, high production, and resistance make it perfect for beginners.


The best cannabis genetics for indoors


Growing indoors means choosing from thousands of seed varieties and genetics the one that best suits the characteristics of this type of cultivation. Typically, the most sought-after qualities in a genetic for growing under lights are high productivity in a short time. This description corresponds to Critical strains, with a flowering period of 7 to 8 weeks and an average yield of almost 600 g/m². Skunk genetics follow closely, although the extra time for Zkittlez and Kush is rewarded with their incredible buds.

Auto Critical GB XXL 100% Feminized


One of the most productive autos, capable of generating up to 140 g/plant in just 2 months outdoors and up to 550 g/m² indoors.

Watermelon Zkittlez by Barney’s Farm


The cross between Watermelon and Zkittlez results in a strain with a very characteristic aroma and flavor reminiscent of watermelon and grape, with medicinal effects.


Which cannabis genetics are the most productive?


The vast majority of genetics currently found in seed banks are hybrids, so the production of the cannabis genetic will depend on the parent it was crossed with. However, as a general rule, the amount of buds produced by Kush strains is unparalleled, as they can exceed one kilogram outdoors. Many specimens of Critical and Skunk genetics are also capable of reaching a kilogram.

Super Skunk 100% Feminized


It was the first stabilized polyhybrid from which many current varieties derive, still thriving due to its productivity: up to 600 g/m² in 9 weeks and 900 g/plant outdoors.

Kritikal Bilbo by Genehtik


This variety produces a large quantity of very resinous buds loaded with flavor and aroma. It stands out for its short flowering period, which finishes in about 50 days.

OG Kush by Humboldt Seeds Company


This strain triumphs with its complex flavor and aroma, blending coffee, gasoline, and earthy notes with citrus; providing a unique experience.


Choose from the most potent cannabis genetics


Lovers of the most potent cannabis genetics will be delighted with Kush and Critical genetics. They share an intense psychoactive cerebral effect which, in the case of Critical, ends with a cerebral and physical tranquility that ensures good rest. The average THC level of 20% also makes them quality therapeutic cannabis, perfect for combating anxiety and stress. Skunk genetics will also impress with their cerebral high and subsequent body and mind relaxation.

Kush Mintz by Barney’s Farm


The 26% THC that this Indica-dominant strain can reach makes it a variety that produces powerful relaxing effects, inviting deep and pleasant rest.

Skunk 47 by Advanced Seeds


The best virtues of this strain are its powerful euphoric effects that lead to relaxation, as well as its unmistakable and very intense fruit flavor and aroma.

Critical Kush by Royal Queen Seeds


This Indica-dominant strain is perfect for discreet grows. With a THC level of 20%, it possesses a powerful calming Indica effect but with an invigorating touch that doesn't stop the day's rhythm.

Top Landrace cannabis genetics


The original characteristics of cannabis genetics are only fully appreciated in Landraces. These are specimens with the best qualities of the wild version of each genetic, selected by humans. To discover the original attributes of the hybrids of Skunk, Critical, Zkittlez, and Kush genetics, one must cultivate their purest or Landrace version. The best Landrace cannabis seeds are at GB The Green Brand.

Lemon Kush by Female Seeds


An all-rounder variety ideal for lovers of Afghan Indicas. It is resistant, strong, very productive, and fast. Indoors, it will only need 15 days of growth and 60 days of flowering.

Hindu Kush by Sensi Seeds


One of the few pure Indica varieties on the market. It possesses all the original characteristics of Hindu Kush: compact, very productive, fast, resistant, with an earthy and spicy flavor.

Maroc by Female Seeds


An authentic Landrace from Morocco. Its flavor is reminiscent of hashish from the Ketama mountains, and its structure is strong, with sparse foliage and a large number of flowers.


Which is the best cannabis genetic?


There are thousands of hybrid varieties that blend the best cannabis genetics with strains of amazing characteristics to improve their qualities. It is impossible to decide which cannabis genetic is best, as each possesses unique attributes that make it suitable for the needs of each grower. In GB The Green Brand's genetics catalog, you can find the seed that best suits your requirements at the best price.