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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Killer Purps

Lovers of colour take note, Killer Purps has landed! These sativa dominant cannabis seeds are a..

From £26.85

Kosher Kush

From Kosher Kush, you can expect piles of buds because of its tight internode spacing. Just be sure ..

From £8.95

Kryptonite

We took several phenotypes of the Granada Mountains and crossed them with our varieties to find a pl..

From £4.95

Kush Bomb

To create our Kush Bomb we crossed a hand selected Southern Cali Kush cannabis seeds with our monste..

From £20.65

Kush Mass

Kush Mass is a blend of an Indica with Sativa traits. She is Critical Mass crossed with a beautiful ..

From £8.95

Kush Mass Auto

Kush Mass is an Indica aspect and comes from a Critical Mass crossed with a Pure Afghan with Kush ge..

From £8.95

Kush n Cheese

Kush'N'Cheese cannabis seeds by Dinafem Seeds belong to an Indica-dominant, feminized cannabis strai..

From £6.50

Kush n Cheese Auto

Kush-N-Cheese Auto cannabis seeds by Dinafem Seeds belong to a feminized autoflowering Indica-domina..

From £6.50

L.S.D

L.S.D marijuana seeds are a combination of an old Skunk variety crossed with the legendary Mazar str..

From £10.45

Larry's Lemon OG

Growing Larry’s Lemon OG is a breeze, although she prefers an indoor environment. If she’s trea..

From £8.95

Laughing Buddha

The Laughing Buddha strain is an award-winning variety that is very close to a pure Sativa. As the n..

From £8.95

Lemon AK

Here we go, Lemon AK-47 marijuana seeds, the very best there is! When you absolutely positively have..

From £9.95

Lemon Haze

Lemon Haze is a widely acclaimed marijuana strain that is sativa dominant. Popular for its character..

From £7.00

Lemon Zushi

Lemon Zushi Feminized Seeds are a creation between (Kush Mints x Zkittlez) and Lemon Tree. The ..

From £9.95

Lennon

Lennon comes from a selection of Jack Herer crossed with Haze. This is a Sativa hybrid, very psychoa..

From £6.95

Liberty Haze

Liberty Haze cannabis seeds are not to be overlooked, this variety is a cross between the infamous G..

From £9.95