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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Sour Diesel

Growers Choice got their hands on some really good genetics out of California and they believe they’..

From £28.95

Sour Diesel Auto

Sour Diesel Auto cannabis seeds by Dinafem Seeds belong to a feminized autoflowering Sativa/Indica/R..

From £7.50

Sour Tangie

Sour Tangie is an ideal choice for licensed commercial growers this plant displays reliable, robust ..

From £8.95

Sour Zkittlez

Sour Zkittles is a new strain developed by one of the most experienced Growers Choice breeders. ..

From £19.95

Sprinklez

Sprinklez is a delicious cross of Sherbet Gelato and the revered Zkittles line. A predominantly..

From £18.95

Starburst

This sativa dominant strain has its origins in Alaska and came as a result of crossing Tangerine wit..

From £21.45

Stardawg

Stardawg AKA Stardog is a super strong cross of chemdawg 4 and Tres Dog. Stardawg cannabis seed..

From £23.96

Stardawg

Stardawg marijuana seeds get its name from the sparkling crystal trichomes which cover the buds and ..

From £9.95

Stardawg

Stardawg Feminized Cannabis Seeds by Good Buzz Genetics: Another new strain from the USA to add to o..

From £160.00

Stardawg Auto

Stardawg Auto-flower is a top chem strain which can produce amazing looking buds. Stardawg Auto..

From £23.96

Sticky Boof

Sticky Boof by Anesia Seeds: The Pinnacle of Potency and Flavor. Prepare yourself for the ultim..

From £29.95

Sticky Fingers Auto

This auto-flowering cannabis seed has everything you need... Sticky Fingers included! The elite..

From £26.00

Strawberry Amnesia

Strawberry Amnesia cannabis seeds by Dinafem Seeds belong to a feminized, Sativa-dominant cannabis s..

From £8.50

Strawberry Banana Smoothie

Strawberry Banana Smoothie is a real deal for everyone who's looking for a tasty treat combined with..

From £21.45

Strawberry Cake

Crossing an aromatic Cheese with the most powerful and fruity Chronic, the Strawberry Cake is a deli..

From £23.95

Strawberry Gelato

Cali Weed's Strawberry Gelato is a result of crossing Gelato #33 with Strawberry Cough. This in..

From £21.45