Greenhouse Seeds

Greenhouse Seeds

The Green House Seed Company is the most successful cannabis business in the world as the winner of countless international awards. They have won the High Times Cannabis Cup 34 times, the Highlife Cup 17 times and many private awards in various countries around the world. The Green House Seed Company are a clear leader in cannabis genetics.

Their owner and founder, Arjan, has been crowned 'The King of Cannabis' for the outstanding number of prizes he has won throughout his career. He has always been committed to creating the best genetics in the world, and to ensuring that growers choose the best genetics, based upon their location, logistics and personal knowledge.

Green House Seed Company genetics are the result of years of intensive selective breeding. All strains have exceptional medicinal and recreational properties, as well as very particular terpene profiles which guarantee unique aromas and flavours.

Arjan started collecting genetics and landraces from all over the world 25 years ago, and he continues to this day.

You can now buy Green House Seed Company seeds from us here at SeedMasters at some of the best prices you will find! 

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Amnesia Haze

Amnesia Haze Bulk Cannabis Seeds are a highly prized hybrid strain that results from the cross betwe..

£165.00 £99.00

Kush Mints

Kush Mints is a very powerful, strong strain which is a combination of Animal Mints x Bubba Kush.&nb..

£165.00 £99.00

MAC #1

These Feminised Bulk Seeds offer a perfect blend of Sativa and Indica, developed through a crossbree..

From £165.00


Mimosa Bulk Cannabis Seeds have been created by crossing Purple Punch and Clementine. Genetics:..

From £165.00

OG Kush

OG Kush bulk seeds are a must-have for any serious cannabis cultivator who wants to experience the b..

From £165.00

Peanut Butter Cookies

Peanut Butter Cookies is a must-have strain for any cannabis enthusiast. This hybrid is the res..

From £165.00

White Widow

White Widow bulk seeds are a highly sought-after strain for cannabis enthusiasts and cultivators ali..

From £165.00


As a seasoned cannabis grower, we are thrilled to introduce you to the fantastic strain, Zookies.&nb..

From £165.00


A.M.S. (Anti-Mould Strain) has the genetics of both Swiss sativa and Swiss indica. A.M.S. produces s..

From £13.95

Arjan's Haze #1

Arjan's Haze #1 has earned its reputation after winning 4 cups, including 1st place in the 2004 High..

From £28.00

Arjan's Haze #2

Arjan’s Haze #2 is an early finisher with great uniform growth, admirable yield, large-scale THC pro..

From £24.05

Arjan's Haze #3

Arjan’s Haze #3 is the easiest-to-grow and the shortest sativa in the Arjan's Haze family. It is a b..

From £13.45

Arjan's Strawberry Haze

Arjan’s Strawberry Haze is a Swiss sativa x NL5 Haze Mist.  It gives a very mild body effect wi..

From £24.15

Arjan's Ultra Haze #1

Arjan’s Ultra Haze #1 was a winner in the 2006 High Times Cannabis Cup. It takes genetics from Nevil..

From £24.05

Arjan's Ultra Haze #2

Arjan’s Ultra Haze #2 is a powerful cross between Neville's Haze, Mango Haze, Haze and Laos. It give..

From £28.00

Auto Bomb

Auto Bomb is a cross between Green-O-Matic and Big Bang Autoflowering. It’s a fast hitter which has ..

From £14.85