High THC Seeds

With THC levels upwards of 20%, these seeds pack a punch!


About High THC Strains

Strains with high THC were measured with THC-percentages from 19% to 20% and up.

The type of marijuana seeds you choose to cultivate should depend on your ultimate goal. For many growers, growing an incredible plant starts with the best seeds they can find, high in THC.

What is THC?

Tetrahydrocannabinol, called THC for short, is one of the active ingredients found in the cannabis plant. THC is the chemical responsible for giving marijuana users euphoric highs. It is also one of the oldest hallucinogens in the history of man.

Historical evidence shows that as far back as first century AD, people were using THC as an herbal remedy. Today, research has shown that it still possesses medical properties that benefit consumers. Many people all over the world also still enjoy the high feeling it provides.

There are about 60 different chemicals in a cannabis plant which provide psychoactive effects. The two considered to be the most effective and potent are THC and cannabidiol (CBD). Evidence shows that CBD can counteract the high effects of THC. So, if you are hoping to grow a strain of marijuana that provides an awesome high, make sure its CBD level is relatively low.

Benefits of THC

As an active drug, THC has been used in multiple scientific studies to provide consumers with anecdotal evidence of its medical properties.

Tetrahydrocannabinol has been found to successfully treat various medical conditions, including, but not limited to:

  • Stress
  • Pain
  • Insomnia
  • Migraines
  • Anorexia
  • Appetite problems
  • Nausea
  • Vomiting
  • Asthma
  • Epilepsy
  • Glaucoma
  • Autoimmune diseases
  • Depression
  • Social anxiety
  • Bipolar disorder

Cross breeding helps growers cultivate medical marijuana with phenomenally high THC levels. To maintain hard-hitting marijuana strains with average THC levels of more than 22% the CBD must remain very low. This is so users get an optimal high, without the CBD countering the effects.

Strains this high in THC, like Super Skunk, are for seasoned cannabis users only. The high is very intense, so users must have a high tolerance as well. This also means it takes less to achieve a high, so less is needed to produce hash, dabs, oils and edibles. If you're looking for an even more extreme concentration of THC, then check out our collection of the highest THC seeds available.

Marijuana Fertilizer

Some of the best conventional and biological nutrients to boost your yield!


Grow Kits

Whether you’re just starting out or just hunting for a bargain, these complete sets provide all the seeds, nutrients and boosters to get you through your grow.


Variety Packs

Can’t choose what strains to pick? We have you covered! Try our mixpacks and choose from fruity, spicy, autoflower and more sets.


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