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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White Widow

Over the years, literally thousands of marijuana strains have been discovered, bred and smoked. No s..

From £7.00

White Widow

One of the most famous strains in the world.It’s always fashionable because it’s very difficult to i..

From £5.95

White Widow Auto

White Widow Autoflowering cannabis seeds by Dinafem Seeds belong to an Indica-dominant, feminized, a..

From £7.00

White Widow x Amnesia

White Widow x Amnesia Bulk Cannabis Seeds: White Widow has been the backbone of the Amsterdam Coffee..

From £145.00

White Widow x The Ultimate

This superb and long-awaited cross of two of our most respected varieties delivers great yields of v..

From £48.00

Widow Bomb

How do you improve on a classic? We have with Widow Bomb! We crossed a vigorous White Widow father w..

From £21.75

Wipeout Express Auto

The Heavyweight team set about producing some serious “heavyweight” cannabis seeds with the hard-hit..

From £23.95

Yuhbary

Yuhbary is the most delicious and precious fruit that has ever grown in your garden. Her aroma is im..

From £28.45

Yuhbary Auto

We find the very rare and exquisite Apricot Jelly Strain so convincing that we wanted to use its gen..

From £22.95

Zangria

Outrageous flavors of dark berries, Mango, Fuel and Aniseed are present in Zangria with ripe, purple..

From £18.95

Zkittlez

California legalization brings a new cannabis craze, sweetness at any price. Dessert flavored strain..

From £11.45

Zmintz

Zmints is a supercharged Indica hybrid comprised of two uniquely minty strains from the Cookie famil..

From £18.95

Znapple

A perfect combination of high quality, Terpene-rich genetics with lineage containing Sour Apple IBL,..

From £18.95

Zoap #39

Zoap #39 Seeds are a combination of our RS-11 and Pink Guava. This mix has created an explosion..

From £9.95

Zoomiez

Zoomiez is the result of crossing a carefully selected Biscotti Gushers and an outstanding Crescendo..

From £29.45