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strongest thc weed seeds

Strongest thc weed seeds
With all the new and exciting strains that come out every year, it’s worth making a list to highlight the very best of them. Otherwise, one could get lost browsing the hundreds, if not thousands of strains out there. Although potency is by no means the sole indicator of a quality strain, high-THC cultivars do represent the upper-echelon of cannabis breeding.

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Top 5 Strongest And Most Potent Cannabis Strains

We bring you the strongest, most potent, and highest-THC strains you can get your hands on in today’s market. Are you ready for this list of uber-fire genetics? Let’s find out!

With all the new and exciting strains that come out every year, it’s worth making a list to highlight the very best of them. Otherwise, one could get lost browsing the hundreds, if not thousands of strains out there. Although potency is by no means the sole indicator of a quality strain, high-THC cultivars do represent the upper-echelon of cannabis breeding.

But what constitutes a strain as being “high-THC”? What is the threshold here? Well, today’s top-shelf weed strains can feature THC percentages between 20–30%+. Generally, the standard for a high-THC strain is approximately 17% nowadays. Strains with more than 25% THC can be considered ultra-potent.

THC can sustain a slightly different effect on each individual. When the levels are boosted above 20%, it can augment these effects much further.

Differing CBD:THC ratios can have a massive effect on the way cannabis interacts with the body. Research into the phenomenon is still.


There are many satisfying effects associated with the consumption of high-THC weed, and there are some not-so-enjoyable side effects too. For beginners, it is recommended to start with strains that have THC percentages of 15% or lower. From there, you can work your way up.

The most common effect of THC is euphoria. That’s the typical “high” feeling everyone associates with smoking marijuana. Weed is a great mood-lifter that induces feelings of bliss while allowing you stay in control, unlike other drugs. It helps you forget about the stress and worries of life for a little while. Another point is that high-THC strains can lead to an altered perception of time – so 15 minutes can seem like 30 minutes.

THC also sedates you, and thus, helps with falling asleep. That is actually a pretty beneficial aspect as deeper and longer sleep is generally good for your overall health. The cannabinoid is a powerful pain-reducer as well. As a proven analgesic, it even helps patients undergoing chemotherapy to deal with the pain.

On the downside, THC can also cause short-term memory loss, something that is normally associated with the stoner stereotype. Thankfully, that is only true for the amount of time you are high, and is no lasting condition. In fact, THC shows promising qualities for improving the memory of aging adults.

Something that most beginner smokers experience with high-THC strains is anxiety or paranoia. But these emotions are also temporary. Set and setting play a big part in this too. Like mentioned earlier, always start slow and use strains with less THC and more CBD until you build a tolerance. THC can lead to an increased heart rate; therefore, people with high blood pressure or heart diseases should be very careful when consuming marijuana.

Everybody gets red, bloodshot eyes, especially in the beginning. That’s why sunglasses are a stoner’s best friend. While some find this annoying, others with glaucoma and ocular pressure benefit from it. Dizziness is another downside that can occur from the consumption of high amounts of THC.

It should not go unmentioned that these side effects are not perceived as negative by all stoners. And they don’t necessarily have to occur. It really depends on you and your surroundings, as well as the quality and profile of the weed being smoked. For most smokers, the positive effects far outweigh the negatives.

Top 5 Strongest And Most Potent Cannabis Strains

So, now that you’re familiar with the nature of THC, here are the top 5 high-THC strains!


Bruce Banner #3 by Grower’s Choice is probably one of the most powerful strains on Earth right now. This cross of OG Kush and Strawberry Diesel will hit up to 27% THC with some phenos. She is so potent that even seasoned smokers can be overwhelmed by her strength.

Take it slow with this one! This strain is incredibly powerful and the effect is ultra fast-hitting. Most of you know already that Bruce Banner is the alter ego of the Incredible Hulk, but can you keep up with this force? Only the most experienced will not be smashed into the ground from this smoke.

But jokes aside, despite its power, the effect is nicely balanced, with happy euphoria and awesome relaxation soothing the consumer. This way, you can either get creative or chill and relax with Bruce Banner #3. The taste and aroma are rich and flavoursome as well. Expect earthy kush notes that are combined with diesel and sweet berry tones from Strawberry Diesel. This is the top choice for all cannabis connoisseurs out there!


This is another uber-potent strain! Royal Gorilla by Royal Queen Seeds also reaches 27% in THC. This will give you a spectacular high that will make you feel strong like King Kong. Like Bruce Banner #3, the Royal Gorilla strain family comes from the USA. Now, Royal Queen Seeds has made this special treat available for all you growers in Europe.

Royal Gorilla is derived from Sour Dubb, Chem Sis, and Chocolate Diesel genetics. The effect of Royal Gorilla is perfect for chilling out and relieving stress. But these relaxed sensations are balanced with an uplifting and happy high.

The strength of Royal Gorilla makes her a good strain for medical users as well. She helps manage symptoms of chronic pain, insomnia, and more. Her flavour consists of earthy, piney, lemony, and sweet tones. Royal Gorilla is an outstanding strain that gets you super baked while keeping you coherent with euphoria!

If you’re looking for the strongest strains on the market, then look no further than these three Gorilla Glue strains.


Banana by Zamnesia Seeds brings something different to the table. Banana flavours aren’t something you see in strains all the time. But this lady gives you sweet and mouth-watering banana flavour all the way. There is also some lemon and pepper detectable in the aromatic mix of this delicious treat. This cross of OG Kush and Banana is another strain that originated in the US (yes, they have got the heat over there!). The remarkable lady features THC values of up to a mind-blowing 30%!

So don’t get fooled by her sweet side, she can be really overwhelming if you aren’t careful. But the flavour though! It is so multi-layered, combining the unmistakable sweetness of banana with citrus notes and hints of spice. Your taste buds will have a hard time coping with this sweet and fruity tropical explosion—but in a good way.

Smoking or vaping Banana is an unbelievably pleasant and unforgettable experience. The effect starts with a sativa head rush that gets you motivated and inspired. This then gets balanced out by her indica side, which introduces wonderful relaxation into the mix. However, this phenomenal hybrid is suitable for all kinds of smoking scenarios.


The crazy-potent King’s Banner by Dark Horse Genetics has a THC content that sometimes measures up to a jaw-dropping 30%. This strain is a cross of the famous Bruce Banner #3 and two of the best Kushes out there: King Louie XIII and Joseph OG. This cross results in the ultimate kushyness—a real powerhouse! No wonder this strain, which is based on one of the strongest strains on Earth, now sits atop the throne as even more formidable than her ancestor.

Prepare for a heavy couch-lock and grab yourself some snacks for the munchies because King’s Banner gets you stoned as hell. This lady breaks all records! Make no plans for the day, for this indica provides long-lasting and deep relaxation like no other. But not only that, the superb King’s Banner is also great for patients since she helps with chronic pain, muscle tension, sleeping problems, and other ailments.


You really know there is something very special and unique about a specific cross when it appears twice on a list like this. Here, you have another Gorilla version, this time from BSB Genetics. And boy, she really is the queen of this ranking with THC contents peaking at an exceptional 31%. Yes, you read that right. Top breeders nowadays are able to do that. And aren’t we super excited about this?

This weed will get you super couch-locked as well, so turn on a long movie, preferably with some nice visuals, or play your favourite video game. Gorilla Glue #4 is just perfect for that kind of activity. Or is it even an activity when only your brain is active while your body turns into jelly? We’ll let you decide. Maybe this powerful indica puts you straight to sleep anyway.

The high is super intense and strong, and one thing is for sure: Gorilla Glue #4 will glue a smile on your face. The good thing is, you will only need a few tokes to get super baked from these sticky, resinous buds. This fabulous strain has got it all, so you should definitely check this modern legend out. But first, get ready for her effect—this is no beginner stuff!

Written by: Grant Robinson
Artist and Writer, Grant Robinson is a pro gardener with a big love for the outdoors. When not growing, he tends to be working on art, enjoying nature with his dog, or even making his own clothes!

Strongest thc weed seeds
However, we don’t leave you hanging. To make sure your next grow goes great we created a series of grow guides you can follow to get great yields even with zero experience.

Extreme THC

Enjoy Bigger Highs With Extreme THC Seeds

A Look At Our Extreme High THC Marijuana Seeds

You like getting highs that are stronger than anything you ever experienced or felt? We can help. With our new extreme high THC strains, you can grow bud with THC levels over 21% (which is huge). We offer a variety of different extreme high THC options so you can enjoy the high, mix, and grow challenge you want.

Like a high THC strain but don’t want to go to extremes? Our High THC section may be for you.

How Hard It Is To Grow Extreme THC Seeds

Most extreme THC seeds are hybrids from other strains. That means each strain comes with its own best way to grow it. However, if you are looking for an extreme high without the extreme challenge of growing, we also have a couple of autoflowering seed strains that are easy to grow, produce great bud, and require little maintenance.

Here’s Robert’s (our founder) very own strain for autoflowering extreme THC seeds: Gold Leaf Autoflower.

What Is The High Like?

Good question! Every high is unique to the strain. Since each strain is built from a hybrid of different plants, your experience will be different plant to plant. Some strains increase happiness, others produce great euphoria, etc.

If you have a specific experience you are looking for, check out our options. Each product page details the different experiences the plants produce and what you can expect to feel when you use them. Here are the top picks from our team:

Are These Extreme THC Seeds The Real Deal?

Yes! When you order from us you are guaranteed to get the best seeds possible, no matter the strain. However, we don’t expect you to just take our word for it. That’s why every product page features reviews real users just like you left for it.

This way you can see what people have to say and decide if that product is right for you!

The Best Ways To Buy Extreme THC Seeds

We always tell people to make sure they buy seeds from a trusted supplier. That’s why we tell everyone to visit our review page where we have thousands of independent reviews. With us, you can be confident you are getting the best quality possible!

We even offer a seed combination package with heavy hitters which are heavily discounted! Check out our Heavy Hitters Mix Pack if you want a knockout-bargain.

Need Help With Your Marijuana Seeds?

Worried that growing Extreme THC seeds isn’t easy? We get it. That first grow can be scary. Thankfully, we can help. If you check out our product, you can see we offer everything from challenging seeds to grow to easier to manage autoflowering seeds that produce bud you’ll love!

However, we don’t leave you hanging. To make sure your next grow goes great we created a series of grow guides you can follow to get great yields even with zero experience.

We also know that sometimes our guides don’t cover questions you might have. That’s why we also built a robust support forum where you can post questions and get answers from expert growers who’ve been doing it for years!

So try it out! You’ll be amazed at how much better the quality of your bud will be, unlike what you are used to from the dispensary when you control every part of the process!