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


Arjan's Haze #1

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


Arjan's Haze #2

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


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..


Arjan's Strawberry Haze

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


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..


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..


Auto Bomb

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


Big Bang

Big Bang genetics are of Swiss sativa and Swiss indica taking its genetics from Skunk, Northern Ligh..


Big Bang Automatic

Big Bang Automatic is a very easy-to-grow, medium size (60-100 cm), high production, autoflowering p..


Black & White Mix

Black & White mix contains strains: White Widow, White Rhino...


Bubba Kush

Bubba Kush is guaranteed to be the juiciest tastiest Kush ever. The genetics of greenhouse seeds’ B..



Cheese cannabis seeds have won the cannabis cup 3 times and are now labelled a true classic. The ver..



Chemdog is a cross between OG Kush and Sour Diesel. It received 3rd prize in the High Times Cannabi..


Damn Sour

Dam Sour is a brand new hybrid created from the famous Sour Sage. It is a long-internode indica-sat..


Diamond Girl

Diamond Girl is a fast hitting indica strain with big production and is perfect for Scrog, Sog and L..