cannabis cup winner

Cannatonic Seeds

Having won several High Times Cannabis Cup awards, including for the “Best CBD” strain, evenly-balanced Cannatonic is perfect for those looking for a low-THC high-CBD cannabis strain. Its light and gentle cerebral high and rich CBD makes it an excellent strain to puff anytime of day.

  • 50% Indica 50% Sativa
  • CBD-rich strain with 12% CBD
  • Low THC level of 6%
  • Provides happy and relaxing cerebral high
  • Above-average yields; best grown indoors
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What is the Cannatonic cannabis strain?

Cannatonic is an evenly balanced strain with 1:2 CBD to THC ratio. It came from very famous parents: MK Ultra and G13 Haze. This well-balanced hybrid is especially revered in the marijuana community for its powerful physical and cerebral effects. The fact that Cannatonic strain contains 12% CBD and 6% THC makes it a popular choice for medical marijuana users as well as new cannabis smokers alike.

What are the effects of Cannatonic marijuana strain?

This CBD-rich hybrid strain has plenty of THC to offer recreational users looking for soothing and uplifting effects of THC without any overwhelming psychoactive effects. In many ways, this strain may be an excellent option for those who are either brand new to the world of marijuana usage or who have a very low tolerance to THC, as its high is said to be quite light and mellow, as well as not near as long as strains with higher levels.

Smokers who prefer low-THC strains like Cannatonic, as well as others such as Harlequin and CBD Critical Mass, say that they like how it gently lightens their mental and physical load without leaving them feeling incapable of functioning and that this tends to result in not only feeling calmer but also more optimistic and much happier. In addition, it’s often reported to put users in a more creative state of mind as well as a pleasant, joy-filled place of bliss.

What are Cannatonic’s flavor and aromatic profiles?

Cannatonic’s terpene profile consists of phellandrene, myrcene, β-Pinene, valencene, caryophyllene, and D-Limonene–all of which contribute to its distinct aroma and flavor. Fragrance-wise, Cannatonic has a very clear, earthy aroma with citrusy accents and some slightly sour notes. In terms of its flavor, most agree that this evenly balanced hybrid cannabis strain has a unique and lovely blend of flavors that include tangy, sweet notes of citrus and crisp pine with hints of wood.

What are some adverse effects of Cannatonic?

Considering how little THC Cannatonic has, it is pretty safe to say that it presents users with pretty minimal side effects, with the most likely being the good ol’ dry, itchy eyes and maybe some cottonmouth. The rare few who are super sensitive to even the most trace amounts of THC have said that on rare occasions they’ve experienced feeling nervous about their surroundings. However, this is not considered to be a common side effect of Cannatonic.

Growing Cannatonic feminized marijuana seeds

While you don’t have to have a PhD to successfully cultivate Cannatonic seeds into healthy marijuana plants, you will need some previous cultivation experience under your belt, as this strain is rather fussy and susceptible to mold and mildew. However, one thing that should be of aid to cultivators is that we at Growers Choice Seeds only sell feminized seeds, which means that growers have an almost 100% likelihood of ending up with an all-female crop of bud-bearing plants. While Cannatonic can be successfully grown outside in a warm and dry setting where it won’t be rained upon, most find it easier to cultivate indoors due to its having such specific needs,* which we will address in the section below.

*If you can meet all of Cannatonic’s indoor growing needs in an outside setting, then of course, please grow it outdoors if you prefer.

Growing Cannatonic indoors

When grown inside, your Cannatonic seedlings will need 24 hours of light during their vegetative stage and then will need to be switched to an 18/6 light and dark cycle for your plants to transition to their flowering stage.

During their vegetative phase, you will need to keep humidity levels at about 60%, which you will then need to drop to 50% once your plants are in their flowering time, and, then, at the end of their flowering phase you will need to drop it again to 40%. In terms of temperature, Cannatonic needs daytime temperatures that stay between 72 to 82 degrees Fahrenheit and good airflow, which is why you will likely need to prune your plants during their vegetative stage.

Furthermore, seasoned cultivators recommend keeping their pH levels between 6.2 to 6.5, and feeding them generously early in their vegetative period but it’s also advised to keep a close eye out for nutrient burn. They also recommend decreasing the nutrient feeding during Cannatonic’s flowering period, flushing as needed approximately one to two weeks before harvest time.

How tall do Cannatonic plants get?

Generally speaking, Cannatonic produces plants that grow to be medium in height. So, while they aren’t super short, they should be fine indoors and, unless you’re growing in a really small space with an exceedingly low ceiling, it’s unlikely that you’d have to raise your grow lights to accommodate them.

What do Cannatonic’s buds look like?

Cannatonic’s dense and chunky popcorn-shaped nuggets are quite attractive bright, neon, and yellow-green colors that are accented with purple-hued trichomes.

When to harvest your Cannatonic crops

If you are growing your Cannatonic plants indoors, as most growers prefer to do, it will take about 10 to 11 weeks for your plants to flower. For those who live in the kind of setting where growing this strain outside seems doable, this 50/50 hybrid should render its yield sometime in October if all goes according to plan. When cultivated inside in a controlled setting under the proper care, Cannatonic should reward you with an approximate yield of just over 510 grams per square meter. And when grown in the great outdoors, this finicky, yet incredible, medicinal strain should provide skilled cultivators with almost 400 grams (give or take) per plant.

Additional information

Strain Genetics

MK Ultra x G13 Haze


50% Indica, 50% Sativa

Strain Type

Balanced Hybrid

CBD Level


THC Content


Flowering Time

60-70 days


Happy, Relaxed, Uplifted

Best Use

Anxiety, Depression, Pain


Citrus, Pine, Sweet

Flowering Type


Indoor Yield

500 g/m2

Outdoor Yield

400 g/plant

Growing Difficulty


Where to Grow


Plant Height


Seed Type

Feminized Cannabis Seeds


Growers Choice Cannabis Seeds

Reviews for Cannatonic Seeds

Based on 26 Reviews
  1. Verified Owner

    A great strain for when you are tired and need a good way to fall asleep without too much stress. I bought 5 seeds online and have had a great time growing them at home in my backyard. It’s an involved grow for sure, but it’s certainly worth it cause this stuff helps with stress and depression, even insomnia. Great germination as well, got 5/5 seeds to pop!

  2. Verified Owner

    Had a long night? Great for smoking when you wake up hungover. This is my go-to wake and bake strain. I am really happy I was able to purchase this weed online, made my life so much easier. The sweet and sour flavor wakes up the senses, followed by the sativa energy that lasts all morning long. Happy to purchase this weed again, was not disappointed by the product, and I am not an easy critic!!

  3. Verified Owner

    Some “real good weed.” It’s a lesser know strain, but cannatonic is a heavy indica that lasts for hours, stimulates appetite and promotes sleep. Like all mj, it’s also great for dealing with stress and depression. Now I buy more, cause my supply is running low.

  4. Verified Owner

    I can’t believe it took me so long to find this strain. It’s an amazing mix between indica and sativa, THC and CBD. Really helps me relax, and the euphoria from the THC is perfect and never overwhelming. Best when smoked after work, when you’re ready to be creative or to just take it easy. My wife did much of the growing, but I am here to say it was a success 🙂

  5. Verified Owner

    Cnnatonic is THC and CBD at its best. This weed is LOADED with medicinal benefits, from fighting depression and anxiety, to stimulating appetite. I LOVE Grower’s choice. Their online platform is pretty spot on, easy to purchase, and ships quickly. The only hold up was getting the seeds to germinate. I suggest soaking them overnight to speed the process!

  6. Verified Owner

    Pain relief has never been better than with cannatonic weed from GCS. This bud is both easy to cultivate and extremely powerful against stress, depression, and anxiety. Feeling VERY lucky I had I chance to grow indoors, with a hydroponic setup no less! It’s an excellent mode of cultivation and usually produces between 500-800 grams per harvest (per 3 plants). Growing weed is made easy when you shop with Grower’s.

  7. Verified Owner

    When you smoke this bud, you are bound to be couch-locked for HOURS! This is my absolute favorite strain for video games and pizza. I grow it on the balcony, give it plenty of sun blah blah blah. Living in LA makes it particularly EASY! Fast shipping and SUPER helpful customer service team!

  8. Verified Owner

    The medicinal power of cannatonic is nothing to bat an eye at. If you suffer from anxiety, depression, or fatigue, this weed is here to balance you out. I always found weed cultivation to be a therapeutic process, but GCS takes the worry out of getting the seeds in the first place. First class delivery every time, and always ON time. Great for us Canada growers.

  9. Verified Owner

    Mmm This earthy weed is perfect for indoor growers. I actually grew this in my garage, but it took some skill and passion to make it work. The initial LED investment is pretty high, but once you have your setup, GCS is the best place to secure your MJ seeds. They ship ANYWHERE in the USA….what an awesome benefit! Buy your seeds here and watch the magic happen! Excellent yields and very tasty nugs. Nothing better than fresh MJ!

  10. Verified Owner

    Cannatonic is a popular cannabis strain with a balanced THC and CBD ratio, making it ideal for both medical and recreational use. This hybrid strain offers a relaxed and focused effect without the feeling of being “stoned.” With its earthy and citrusy fragrance, Cannatonic provides long-lasting relief for various ailments.

  11. Verified Owner

    This strain had a very good balance to it, especially for having a high CBD content. I found it to be very helpful for sleeping at night and overall relaxation. Germination was easy and all 5 seeds sprouted healthy. Would recommend for anyone looking for a high CBD strain.

  12. Verified Owner

    The perfect mix between CBD and THC! I get nice and stoney and my pain just melts away. I don’t get much work done on this weed, mostly I am lazy, and I have a nice chill afternoon by myself. I sometimes walk the dog, but the dog doesn’t care that I am stoned. Great flavor, very fresh, would buy again 🙂

  13. Verified Owner

    Looking for a balanced strain with a punch of CBD goodness? Look no further than Cannatonic! This strain is perfect for both medical and recreational use, providing a clear-headed and energizing experience. With its unique aroma and flavor profile, growing Cannatonic plants can be a bit tricky, but the yields are worth it.

  14. Verified Owner

    Cannatonic is my go-to strain for anxiety and stress relief. The high CBD content balances out the THC, providing a mellow and relaxing experience without feeling too heavy or sedated. I also appreciate the citrusy taste. Highly recommend it for those looking for a calming and uplifting high.

  15. Verified Owner

    Perfect hybrid if you want the balance of Sativa and Indica, with a great anxiety killing high that relaxes body and mind. Growing was a bit of work but really paid off with how much weed you get from this plant!

  16. Verified Owner

    The Cannatonic strain is a hybrid with equal parts sativa and indica, containing low THC levels and high CBD content. It provides relaxation, focus, and uplifted feelings without psychoactivity, making it suitable for both recreational and medical marijuana users. With its mild adverse effects and distinct earthy and citrusy taste, Cannatonic is a popular choice among cannabis enthusiasts.

  17. Verified Owner

    Cannatonic is the perfect balance of relaxation and happiness. As someone who struggles with anxiety, this strain has become a game-changer for me. The citrus and pine flavors make for an enjoyable smoking experience and the 9% THC content allows for a gentle high. It’s also great for pain relief and I love that it’s a balanced hybrid.

  18. Verified Owner

    I was really happy with my purchase of Cannatonic, I enjoyed the balance high of this strain which helps me to feel both relaxed and uplifted. The growth time was a bit on the longer side at 10 weeks, but it was well worth the wait. Would recommend it to anyone looking for a nice mellow high.

  19. Verified Owner

    Cannatonic Feminized Seeds are a true delight with their perfectly balanced CBD to THC ratio. The buds are dense and fragrant, with a mellow and relaxing high that’s truly “can’t” miss. The pun in the strain name is definitely fitting, as this strain never fails to leave me feeling calm and centered.

  20. Verified Owner

    Fresh Cannatonic weed helps me manage my stress and anxiety levels. Buying with GCS is the perfect choice for new growers looking to get into the weed growing game. They have excellent prices on seeds, even wholesale orders! I purchased just 5 to get started….and I am thankful I did because these yields are craYyyyy!

  21. Verified Owner

    I’m so thankful I found Growers Choice Seeds! Their friendly customer service made my purchase easy, and their fast shipping meant I didn’t have to wait long to get started. The quality of the germination for Cannatonic was top-notch, and I ended up with some great plants that yielded a generous amount of high-quality harvest.

  22. Verified Owner

    The high was a perfect balance between body and mind, leaving me in a state of blissful relaxation. Whether you’re a seasoned grower or just starting out, Cannatonic is the perfect choice for a uniquely uplifting experience.

  23. Verified Owner

    Heavy and uplifting Cannatonic. Hits pretty hard. Not a wake and bake. Better in the evening. Pain relief, stress relief, and sleep.
    My wife and I like working on this weed together. We learn a LOT from reading these blogs….so HELPFUL and FREE info? Dang, 2023 you know?
    I get great options, the selection is NICE and the shipping is always fast. Never had an issue with these guys!

  24. Verified Owner

    Cannatonic is the perfect strain for those seeking a balanced and relaxing experience. With its moderate CBD levels and low THC content, it provides a happy and uplifted feeling without the overwhelming high. The citrus, pine, and sweet flavors make it enjoyable to smoke. Whether you’re dealing with anxiety, depression, or pain, Cannatonic is a great choice.

  25. Verified Owner

    Happy that the Seeds delivered with fast shipping. It took 3 days to get to me from ordering. Harvested in just 11 weeks, this strain helps me chill and tackle the day. Smooth, mellow, and a new go-to. I recommend for a low-key high days.

  26. Verified Owner

    Hits pretty hard and usually lasts pretty long. I am thrilled to be here, just saying. The weed is good, the prices are great, the community is so supportive. If you EVER get lost or have trouble with your seeds, they have a 60 day seed replacement thing and it works great. They really want you to succeed and it comes straight from northern Cali!

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