If you want to buy weed in Canada, nothing beats buying it online. Not only can you get fantastic prices on high-quality buds, but you can also get everything you order sent directly to your address safely and discreetly with no hassle. Whether you’re in a big city or a rural location, you can get convenient weed delivery. Plus, you can find some of the best and strongest marijuana strains online.


While many cannabis stores across the country are still short on strains, you can find tons right here at Leaf2Go. Maybe you’re looking for an indica strain to relieve your pain and help you relax in the evening. Perhaps you’d prefer an uplifting sativa strain that’ll make you feel motivated and focused. Or maybe you’d like a hybrid strain that gives you a mix of both. Whichever way, you have plenty of choices.


Each strain differs when it comes to effects, aroma, and flavor, so whether you need a hard-hitting medical strain or a great-tasting strain to use as a wake-and-bake, there’s something to suit you. So which strain should you buy? Here are some of the best and strongest marijuana strains of 2020.

1. White Widow

White Widow is a universally popular strain known for its incredible hybrid effects, earthy and peppery taste, and extra high THC levels. If you want a strain that’s going to help you relax without making you feel too hazy, this strain is perfect for you.


It’s made by crossing Brazil sativa with South Indian indica, resulting in a strain with a balanced 60:40 sativa to indica ratio. It also boasts THC levels of around 20-25% THC along with a good dose of CBD and CBN, both of which make it even better for medical use.


Buy White Widow 

2. Lemon Sativa

With a deliciously fruity taste and strong stimulating effects, Lemon Sativa is one of the easiest strains to enjoy. It usually has THC levels of around 20-25% THC, making it one of the strongest marijuana strains on the market.


You’ll get a sensational high when you use this strain- clearing your mind of any stress and uplifting you to feel happy, giggly, and sociable. Despite its high potency, it helps you remain alert while still soothing your body and relieving you of pain.


Buy Lemon Sativa


Lemon Sativa

3. Platinum OG

Platinum OG is a stellar indica-dominant strain that crosses the genetics of OG Kush, Master Kush, and an unknown parent. The result is a strain with powerful THC levels of 20-24% and exceptionally relaxing effects.


Using this strain will swiftly relieve you of all pain and stress while you sink into the couch. You’ll feel incredibly euphoric as you experience soothing physical tingles all over your body. As well as being great for pain and inflammation, it’s also perfect for tackling insomnia.


Buy Platinum OG

4. Nightmare Cookies

Nightmare Cookies is one of the best and strongest marijuana strains, boasting a potent 24% THC profile. While the name might make it sound intimidating, the high is incredibly enjoyable and will quickly put you into a happy and euphoric state.


It’s a sativa-dominant strain that’s great for times when you need a pick-me-up, especially as it helps reduce symptoms of anxiety, depression, and chronic stress. The indica effects will soon creep in, taking all tension out of your body and making you feel relaxed and sleepy.


Buy Nightmare Cookies 

5. Purple Thai

Purple Thai is another potent cannabis strain with THC levels of around 20-23%. Purple Thai is easily recognizable thanks to its exceptional bag appeal. It packs dense buds covered with purple and orange hairs and thick, white trichomes.


It’s also one of the best-tasting strains. You’ll instantly notice the intoxicating aroma that carries hints of nuts, berries, coffee, and chocolate, and it’s just as good when you smoke it. As for the effects, you can rely on Purple Thai to give you an invigorating head high that boosts your mind and heightens your senses.


Buy Purple Thai 

6. White Rhino

White Rhino is a fantastic strain for soothing effects. Smoking this strain will put you in a happy and carefree mood, although you might find yourself feeling sleepy and lazy. It’s also great for counteracting pain, stress, and insomnia.


Along with its tranquilizing effects, White Rhino is also known for its bitter, earthy aroma with hints of pine and spices. It’s a great strain to use at nighttime when you simply want to kick back and relieve stress.


Buy White Rhino


White Rhino

7. Green Lantern 

Green Lantern is a potent sativa-dominant strain that can reach THC levels of 23%. With a pungent citrusy and peppery aroma and a delicious lemony taste, this strain is a joy to use. It’s also perfect if you want an energizing head rush.


When you use this strain, it hits you hard and fast. You’ll feel your mind soaring to new heights as it peaks your creativity and makes you more curious about everything. Soon after, you’ll be treated to a tranquilizing body high that makes you feel stress-free and sleepy.


Buy Green Lantern 

8. Nine Lives

Nine Lives is a unique strain that’s created by crossing three other strains- Nine Pound Hammer, Cat Piss, and Fruity Pebbles. The results are phenomenal. This strain packs THC levels of 23-25% and a 75:25 indica to sativa profile.


You can rely on Nine Lives to make you feel exceptionally happy and creative while also soothing you physically. The body high is warm and tingly without being too sedating or overpowering, making it a prime strain to enjoy throughout the day.


Buy Nine Lives

9. Captain’s Cake

This indica-dominant hybrid is a must-try for every marijuana lover. Captain’s Cake is a cross between Girl Scout Cookies and White Fire OG. These are both exceptional strains in their own right, and Captain’s Cake is just as enjoyable. 


If you’re looking for a mix of cerebral stimulation and physical relaxation along with a sweet, nutty taste, Captain’s Cake is perfect for you. It’ll swiftly lift you into a euphoric, carefree state while gently soothing your body of any pain or physical tension.


Buy Captain's Cake

10. Green Goblin 

Green Goblin is a sativa-dominant hybrid created by crossing Northern Lights and Skunk #1. By crossing one of the most notorious pure indica strains with an iconic pure sativa strain, this strain gives you the best of both worlds with a 65:35 sativa to indica profile.


A few hits of this exceptional strain will put you in a euphoric, almost dream-like state. You’ll be freed of any worries on your mind while also feeling physically relaxed all over. It packs a punch with THC levels of 24% or over, so use it wisely.


Buy Green Goblin


Sour Dubble

11. Sour Dubble

If you want an uplifting head high with a sweet, bubblegum taste, Sour Dubble is the ideal strain for you. Also known as Sour Dubs, it’s a cross between East Coast Sour Diesel and Sour Bubble with a strong sativa profile and powerful THC levels of up to 26%.


You’ll quickly be lifted into a euphoric and gleeful state when you smoke this strain. It’s perfect for social use as you’ll feel more talkative and creative while it also gives you a mild body high that relieves you of any pain.


Buy Sour Dubble

12. Ocean’s Dream

Ocean’s Dream is one of the strongest marijuana strains you can find with a THC range of 24-28%. If you want a hard-hitting sativa-dominant strain that’s going to put you in one of the best moods of your life without feeling too anxious, then Ocean’s Dream is the strain for you.


With flavors of fresh berries, pine, and citrus, you’ll love smoking this strain. As you take a hit, you’ll be lifted into an ecstatic state while also being relieved of chronic stress and depression. It’s great as a wake-and-bake or daytime strain.


Buy Ocean's Dream

13. Liberty Haze

Liberty Haze is another strain known for its high THC levels and pleasant high. With its hybrid genetics, it delivers a happy head high along with luxurious physical effects. It’s also a past High Times Cannabis Cup winner, so you know you’re in for a treat when you smoke it.


Using this strain will make you feel happy, and giggly while still being mentally focused and alert. It’ll put you in a great mood while also treating you with physical tingles that relieve you of pain, aches, and physical tension.


Buy Liberty Haze

14. Maui Dawg 

Maui Dawg is a mix between a variety of fantastic strains, resulting in a potent indica-dominant hybrid with effects that’ll creep up on you. With an incredible flavor and the ability to help with a range of physical and mental conditions, it’s a suitable strain for pretty much everyone.


Smoking this strain will make you feel like you’re relaxing on a tropical island. You’ll be treated to a sweet tropical flavor with diesel undertones along with a delightful head high. Soon, the physical effects will creep in, making you feel deeply relaxed and blissful.


Buy Maui Dawg


Biker Kush

15. Biker Kush 

With exceptional THC levels of 23-25%, Biker Kush is one of the best and strongest marijuana strains of 2020. It’s made by crossing Hell’s OG with Lucifer OG, resulting in a strong strain that heightens your mind while soothing your body.


You’ll swiftly be put into a happy, sociable and state when you use this strain. You’ll feel a burst of mental creativity and enhanced senses that make every experience more enjoyable. You’ll also feel your body sink into a deep and soothing relaxation, relieving you of stress and pain.


Buy Biker Kush

16. Malawi 

Malawi is one of the greatest strains out there. If you want deeply relaxing effects while still being clear-headed and mentally-focused, this strain is the perfect option. It also has a deliciously rich taste that makes it all the more enjoyable.


The physical effects of Malawi will send soothing waves all over your body, making it great for relieving pain, inflammation, and any kind of aches or tension. Meanwhile, it’ll boost your mood and your senses, making you feel euphoric and relieving you of stress and anxiety.


Buy Malawi

17. Deathstar OG 

If you need a powerful strain for medical relief and other strains aren’t cutting it, try Deathstar OG. This strain is notorious for its thick, resinous buds, pungent skunky aroma, and high THC levels that can range from 20-28%. 


Deathstar OG delivers incredibly relaxing effects, but it won’t hit you all at once. The effects slowly creep up on you, giving you long-lasting relief for pain, inflammation, stress, anxiety, depression, and more until eventually, you feel completely relaxed and carefree.


Buy Deathstar OG

18. Bubba Kush 

Bubba Kush is one of the most popular strains out there. With its euphoria-inducing effects, unique coffee-like taste, and colorful, trichome-laden buds, there’s a lot to love about Bubba Kush. Plus, with THC levels reaching as high as 27%, you can rely on it for an intense high every time.


It’s the perfect strain to use when you simply want to take a load off and relax. It’ll send soothing waves of relaxation throughout your entire body, freeing you of any pain or tension. It’s also perfect for relieving your mind of stress and depression, as well as being a powerful sleep aid.


Buy Bubba Kush 


Sour Diesel

19. Sour Diesel

Sour Diesel is widely considered one of the best sativa strains you can buy. It often packs THC levels of up to 23%, giving you a hard-hitting high that can instantly lift you out of a negative mood.


If you want a strain that’s going to make you feel happy, creative, and energized without any sedating effects. Sour Diesel is perfect. Use this in the daytime to feel your mind soaring and your stress melt away. It’s also perfect as a wake-and-bake strain to put you in the right mood.


Buy Sour Diesel

20. Super Silver Haze

Super Silver Haze is another one of the best and strongest marijuana strains of 2020. With 23% THC levels, an amazing taste, and effects that anyone can enjoy, this is a strain well worth trying out for anyone.


When you smoke this strain, you’ll be treated to a smooth and creamy inhale with hints of herbs, spices, and citrus fruits. The effects will come on fast, giving you a strong and long-lasting body buzz that leaves you feeling calm, tranquil, and ready to sleep.


Buy Super Silver Haze