Marijuana strains often differ in the effects they give you, and a lot of this comes down to their cannabinoid levels. Low-THC strains are great for a mild high whereas high-CBD strains are perfect for pure medical use. However, when you want the most intense high possible, you’ll want to look for the strongest marijuana strains in terms of THC levels.

Interestingly, marijuana strains have gotten stronger over the years. Research shows that the average potency of cannabis flower has risen significantly over the past couple of decades, and you can now legally buy strains with 20% THC levels or even higher. Here are some of the strongest marijuana strains in terms of THC levels you can buy for an exceptional high.

1. Slurricane

If you want extremely hard-hitting effects, this indica-dominant strain is perfect for you. Slurricane is a cross between Do-Si-Dos and Purple Punch with a 60:40 ratio of indica to sativa. On top of giving you versatile effects, it’s also known for its exceptional potency- Slurricane’s THC levels often reach 20-28%.

When you smoke this strain, you’ll instantly be rewarded with an incredible wave of euphoria. You’ll feel happy and blissful while all stresses and worries are removed for your mind. Meanwhile, the physical effects will make you feel warm and tingly all over, relieving you of all kinds of pain and inflammation.

Since it’s so powerful, it’s great for medical users who have severe chronic pain. It also helps significantly with issues such as insomnia, headaches, migraines, and nausea. It’s also great for recreational users who simply want blissful relaxation. With that said, prepare to feel couch-locked for hours when you use Slurricane.


2. Ocean’s Dream

Ocean’s Dream is a rare strain created by crossing the popular Blue Dream with Wet Dream. As well as being an exceptional strain for medical relief, it also gives you one of the most enjoyable recreational highs as it uplifts your mind without making you too anxious or racy. Plus, with average THC levels of 24-28%, it’s one of the most powerful strains on the market.

It has an 80:20 sativa to indica ratio, but despite it being a sativa-dominant strain, you’ll still get an exceptional body high. Using this strain will swiftly fill you with mental energy and focus, making you feel creative and motivated. The head high is great for relieving symptoms of stress, anxiety, and depression.

As the effects progress, you’ll begin to feel more relaxed and hazy. With soothing waves rushing through your body, you’ll soon feel all physical tension melting away. This can be great for tackling issues such as pain, migraines, and nausea. This strain also gives you a rich aroma and taste with earthy notes and hints of fresh berries, making it even more enjoyable.

3. Bubba Kush

Bubba Kush is a notorious strain known for providing an exceptionally relaxing high. Bubba Kush is a pure indica and, as such, you can rely on it for when you need deep mental and physical relaxation. It’s also one of the strongest strains out there with THC levels sometimes hitting as high as 27%.

This strain looks amazing straight out of the bag. You’ll notice that the dense purple buds are packed with amber hairs and sticky trichomes. But the quality doesn’t stop there- as you smoke it, you’ll catch a luxurious sweet yet earthy taste with hints of coffee and chocolates. The effects are even better.

When you use Bubba Kush, you’ll be treated to one of the best highs you’ve ever felt. The tranquilizing effects will grow throughout your body, relieving you of any pain or physical tension. It’ll also calm your mind and make you feel blissful and stress-free. It’s one of the best strains for relieving insomnia, stress, and depression as well as being great for general evening use.

Bubba Kush

4. Nine Lives

Nine Lives is an interesting hybrid cross between three strains- Nine Pound Hammer, Cat Piss, and Fruity Pebbles. The result is a strain that’s exceptionally strong both in terms of its flavor and its THC levels. With an indica to sativa ratio of 75:25 and THC levels of 23-25%, you can expect powerful soothing effects from this strain.

When you use Nine Lives, you’ll instantly feel euphoric and mentally uplifted. It clears your mind and frees you of stress, making you completely relaxed and carefree. It also gives you calming physical effects that relieve you of pain and aches without being too sedating.

It’s a great strain to use for medical users who want to treat issues such as pain, stress, depression, chronic fatigue, and ADD/ADHD. It’s also great for recreational users who simply want something to help them relax without making them fall asleep. It also has a pungent yet enjoyable aroma and flavor with hints of lemon, berries, tropical fruits, and spices.

Buy Nine Lives

5. Green Lantern

Green Lantern is an incredible sativa-dominant strain with stimulating effects that hit you rapidly. With THC levels of 23% or higher, it’s one of the strongest marijuana strains in terms of THC levels. It’s also one of the most enjoyable- with an 85:15 ratio of sativa to indica genetics, it’s known for giving you an incredibly uplifting high.

As soon as you take a hit of this potent strain you’ll notice a cerebral burst of energy. It’ll heighten your senses and make you feel creative and focused, which can be great for social situations. You’ll notice that every activity seems more interesting and fun. As time goes on, you’ll grow more introspective and hazy.

While the mental effects are phenomenal, Green Lantern also gives you soothing physical relief. The relaxing body high can help relieve all physical tension and eventually draw you into a deep and peaceful sleep. With exceptional effects and a peppery, citrus flavor, this strain is well worth trying out.


When you’re looking for a hard-hitting high, these strains will hit the spot. These are some of the strongest marijuana strains in THC levels, although there are plenty of other examples.

All of these strains and many more are available for convenient home delivery when you order online. Alternatively, you can also browse a range of other marijuana products including Edibles such ad weed gummies, Tinctures, and Vape Products at