High THC Cannabis Seeds

High THC Cannabis Seeds

This section is a collection of the most powerful and potent high THC cannabis seeds available to our team at SeedMasters.com!


We have carefully picked the very strongest strains in terms of high THC content, saving you time and providing you with some ferocious world class genetics that will seriously blow your socks off! We are excited to showcase the indisputable potency of these champion strains and to do our bit to make them more accessible as a whole.

Our High THC cannabis seeds are reserved for those with real tolerance, those who are brave, and those who are just plain irresponsible! This list is NOT for newbies!!!

These strains are perfect for the professional, long-term enthusiasts looking to put some raw horsepower behind their breeding operations, for the established home-growers looking to try something even more rewarding, or just for anyone with courage who is looking to put some hairs on their chest! Whatever your situation, it's safe to say these will not disappoint!

..and as always you can expect nothing less than 
high-quality cannabis seeds when you buy from our team here at SeedMasters.com! 
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Bubba Kush

Blue Kush cannabis seeds by Dinafem Seeds belong to a feminized, Sativa-dominant cannabis strain obt..

From £8.50

Bubba Kush Auto

Bubba Kush Auto cannabis seeds by Dinafem Seeds belong to a feminized autoflowering Indica-dominant ..

From £8.50

Bubble Bomb

Bubble Bomb is the result of crossing Cannabis Cup winning Bubblegum cannabis seeds with our highly ..

From £22.75

Bubble Kush

The term ‘OG’ was originated in the hip-hop industry to mean ‘Original Gangster.’ But when it comes ..

From £8.00

Bubblegum x Fat Hog

Bubble Gum is a medium tall, usually not too branchy plant with compact, crystal covered buds. ..

From £22.45

Budzilla

This devastating G13 / Skunk #14 cross is a must for any grower whose serious about their smoke. For..

From £23.95

Burmese Kush

Burmese Kush is a beautiful mix between Trainwreck and White Widow marijuana seeds. The additio..

From £5.30

Butter Cupz

Butter Cupz is a moreish, 70% Sativa cross between the famous Peanut Butter Breath and the slightly ..

From £18.95

Buzz 'n' Smiles

These cannabis seeds are a cross between Super Lemon Haze and Big Head #1 genetics, creating a strai..

From £35.95

Buzz Bomb

As a high quality connoisseur Sativa, Buzz Bomb cannabis seeds certainly live up to their name. A he..

From £24.75

C4-Matic

This cannabis plant is the result of multiple crosses of several selected purple strains - a polyhyb..

From £7.95

Café Racer

This crossing of two of our selected Best Sellers in Oakland, which give us a truly an amazing plant..

From £23.50

Cali Bay Dream

Cali Bay Dream was born after a cross between Granddaddy Purple, OG Kush, and Bay 11. The result was..

From £8.95

California Nuggets

California Nugget is a favourite amongst smokers as well as growers. It is particularly popular beca..

From £4.60

Californian Snow

This is the rarest and most daring strain created by our team of botanists. Californian Snow is a cr..

From £7.95

Calypso Sunrocks

With Calypso Sunrocks comes a new premium strain to the other legendary and unique strains of our se..

From £27.95