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! 
Show:
Sort By:

White Widow

White Widow is a legendary Dutch classic that also origins from Holland. Our version of the White Wi..

From £4.60

2 Fast 2 Vast Auto

The Heavyweight team had a task here how to improve on probably the best autoflowering strain availa..

From £20.00

Acapulco Gold

Acapulco Gold is one of the most important strains ever created and is the touchstone of Sativa cann..

From £19.25

Afghan Kush

RegularWe bring to you this Indica Kush, a lineage that has produced many champion strains. It ..

From £17.00

Afghan Kush Ryder

Afghan Kush Ryder is a cross between Afghan Kush and Ruderalis.Our Afghan Kush comes from Kush strai..

From £24.00

Afghan Kush x Black Domina

This is one of the mixtures of genetic  Indica  finest we have; our  Afghan Kush , kn..

From £19.00

Afghan Kush x Skunk

Our afghan kush variety of great therapeutic value, thanks to its high production cannabinoids, is c..

From £18.00

Afghan Skunk

Developed in the US, Afghan Skunk cannabis seeds combine genetics from the legendary Afghan with the..

From £14.10

Alpujarrena

Alpujarreña has been grown to over a 1000 meters; it is a strong plant, resistant to extreme conditi..

From £5.80

American Pie

American Pie is a South African Sativa-dominant hybrid renowned for its big, compact colas and its ..

From £5.80

Amnesia AUTO

Amnesia AUTO is the result of years of growing, crossing and improving. Amnesia Auto was created by ..

From £5.80

Amnesia Gold

One of the varieties which has cost us most time to develop.We have crossed two Haze like Lennon and..

From £5.80

Amnesia Haze

After the haze genetics came to Holland and several hybrids were made, an American expat would later..

From £8.00

Amnesia Haze Auto

The Amnesia Haze Automatic is the result of many years selective breeding.A cross of the Amnesia Haz..

From £8.00

Amnesia Lemon

This magnificent strain is a cross between Amnesia Haze and Lemon Skunk cannabis seeds.With the unmi..

From £21.95

Amnesia Mac Ganja !

Amnesia Mac Ganja! is a crossing between the original Amnesia and a Mexican Haze. Designed and devel..

From £6.00