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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Grandaddy Purple

Grandaddy Purple Feminized Seeds by Good Buzz Genetics - Iconic Indica Excellence. Grandaddy Pu..

From £160.00

Granddaddy Purple

Granddaddy Purple by Double Seeds. Granddaddy Purple cannabis seeds (AKA Grand Daddy Purps) pro..

From £23.96

Grapefruit x Bubblegum Auto

Grapefruit x Bubblegum autoflowering is a medium tall plant with heavy side branches.  Its yiel..

From £19.95

Grapefruit'matic

We have created a real grapefruit in cannabis form for lovers of the bitter, sweet and citrus flavor..

From £7.95

Green Apple Juice Auto

Green Apple Juice Auto: Potent Sativa-Dominant Autoflower with Juicy Flavors. Green Apple Juice..

From £22.95

Green Crack

Green Crack is like a turbocharged mango-flavored energy drink. It's a variety of marijuana that wil..

From £9.95

Green Crack

Green Crack is a legendary strain that has the credibility of being Snoop Dogg’s favorite weed. That..

From £8.95

Green Gelato

Gelato: The Forbidden Dessert Cannabis Of The GodsGENETICS: THE PURSUIT OF DANKNESSFresh out of the ..

From £14.00

Green Ninja

The Green Ninja is ideal for those who want a stealthy and discreet cultivation. Short and highly br..

From £23.95

Guava

Guava Kush is in the high end of a Sativa hybrid, the buds are dark light green with amber trichomes..

From £8.95

Gushers

If you're looking for an extraordinary flavour that combines sour tropical fruits and creamy cookies..

From £15.95

Gusherz

Gusherz has a solid reputation in the Cannabis Community for its intense fruit and candy flavor.&nbs..

From £18.95

Hash Bomb

Hash Bomb cannabis seeds are an absolute must for hash lovers and medical users alike. A perfect cro..

From £14.45

Haze #2 Automatic

Haze 2.0 Autoflowering cannabis seeds by Dinafem Seeds belong to a feminized Sativa-dominant cannabi..

From £7.50

Haze Automatic

Haze Autoflowering cannabis seeds by Dinafem Seeds belong to a feminized, autoflowering, Sativa-domi..

From £6.50

Haze Berry

Haze Berry is much loved in California and many other medical marijuana states. It comes from a cros..

From £8.00