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:

Haze Mist

Haze Mist cannabis seeds are a stunning White Widow x Haze cross known for its potency and stability..

From £20.55

Haze Queen

Haze Queen feminized seeds are a highly developed variety that delivers an outstanding flavor and ex..

From £26.45

Haze XXL Auto

Haze XXL Auto cannabis seeds by Dinafem Seeds belong to a feminized autoflowering Sativa-dominant ca..

From £7.50

Headbanger

This strain needs no introduction. A fans favourite and probably Cali Weed's favourite too. Sat..

From £21.45

Heavy Bud

Heavy Bud is an Indica strain which was selected for its versatility, resistance to pests and overal..

From £18.95

Hell's Bells

The Hell’s Bells cannabis seed strain has a weighted effect and a characteristic Kush taste. A cross..

From £35.95

High Density Auto

For an autoflowering plant that from seed to harvest takes 8 weeks, this is spectacular, a stem bend..

From £23.95

High Mars

Introducing "High Mars" by Anesia Seeds - a strain that takes cannabis cultivation to a whole new le..

From £29.45

Hyper Glue

Hyper Glue by Anesia Seeds: A Power-Packed, Resinous Hybrid for Supreme Yield and Potency. Anes..

From £27.95

Ice Bomb

When creating Ice Bomb cannabis seeds we wanted a strain full of flavour and a heavy coating of ice ..

From £26.75

Ice Kreme Cake

Ice Kreme Cake Seeds derive from a combination of Gelato#33 and Wedding Cake F2. During the sel..

From £9.95

Ice Kush

Ice Kush is a powerful hybrid which combines genetics from legends like Skunk #1, Afghani, Northern ..

From £13.85

Iceberg

Iceberg feminized seeds are a very resinous variety that offers great yields and an enormous potency..

From £28.45

Imperium X

Imperium X is one of the strongest strains in the world, combining outstanding traits like no other ..

From £27.95

Indigo Sapphire

Indigo Sapphire by Anesia Seeds: A Galactic Cannabis Experience. Unlock the cosmic power of Ind..

From £31.95

Industrial Plant

Industrial Plant cannabis seeds by Dinafem Seeds belong to a feminized, Sativa/Indica cannabis strai..

From £9.50