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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Chronic Thunder

Chronic Thunder feminized cannabis seeds have been created with superior genetics gained from her pa..

From £19.25

Cinderella 99

Also known as Cindy or C99, Cinderella 99 is a popular sativa-dominant strain fathered by the famous..

From £30.95

Cinderella 99 Auto

Cinderella ’99 Auto Feminised is the holy grail of the cannabis strains, resembling the high and the..

From £22.45

Coco Jambo

Welcome to the enchanting world of Coco Jambo, Anesia Seeds latest masterpiece, crafted for those wi..

From £31.95

Cookies and Cream

Cookies and Cream have quickly become one of the USA’s must-have varieties. This is partly for the d..

From £21.45

Cookies and Cream Auto

Cookies and Cream enjoyed a well-earned reputation for being one of the smoothest, sweetest, and mos..

From £21.45

Cookies Kush

Cookies Kush is one of the hottest cannabis seeds on the market today and has become a phenomenon ar..

From £9.95

Crazy Mouse

Kera Amsterdam CheeseA type that you will never forget because of the high THC content and the stron..

From £4.60

Cream Cookies

Some things just go together. Think cheese and wine or pizza and beer, and, of course, cookies and c..

From £9.95

Critical

Critical is a stunning cross between Critical Mass x Brazilian x South Indian cannabis seeds.Critica..

From £14.75

Critical

Critical is a plant that's getting well-known throughout the world. The seed brings back the memory ..

From £5.80

Critical +

Critical + cannabis seeds by Dinafem Seeds belong to a feminized Sativa/Indica cannabis strain obtai..

From £9.50

Critical + 2.0

Critical + 2.0 cannabis seeds by Dinafem Seeds belong to a feminized, Sativa-dominant cannabis strai..

From £9.50

Critical + 2.0 Auto

Critical + 2.0 Autoflowering cannabis seeds by Dinafem Seeds belong to an Indica-dominant, feminized..

From £8.50

Critical + Automatic

Critical + Autoflowering cannabis seeds by Dinafem Seeds belong to a feminized Indica-dominant canna..

From £8.50

Critical 2.0 XL Auto

Critical 2.0 XL Auto by Garden of Green is undoubtedly one of the sweetest Auto hybrids on the marke..

From £8.95