• Our Score 5/5
cannatonic marijuana strain by msnl

Cannatonic is one of a growing number of “new-school” strains, which emphasize CBD over THC.  While the strain itself is relatively modern, it’s based on classic genetics in the form of G13 Haze. Which is crossed with MK Ultra, making it a balanced hybrid.

  • Strength 7%
  • Stone Very Mild
  • Speed 9-10 Weeks
  • Height 100-180cm
  • Yield 500g/m2+
  • Harvest October

Our Verdict

  • Pro's
  • 1:1 THC:CBD ratio
  • Robust
  • G13 Background
  • Con's
  • Moderate Grow Difficulty
  • Medium Height
  • Diesel Notes

Cannatonic Review

Cannatonic Review


Cannatonic cannabis

Even though Cannatonic was developed specifically to emphasize CBD, it still has 7% THC. This is nowhere near close to enough to deliver anything remotely approaching a high. But it is enough to make itself felt in the form of a gentle lift to your mood and a certain degree of pain relief. People who buy Cannatonic, however, buy it for the CBD content. CBD content is generally in the region of 7%. In other words, this strain offers the medical “golden ratio” of 1:1 THC and CBD.


Indoors Cannatonic will deliver yields of up to 500g/m2 and outdoors you can expect up to 250-400g per plant. Plants tend to stay of a moderate size with a growing range of between 75cm (indoor minimum) and 2M (outdoor maximum). While this may seem quite a large range, it’s worth remembering that marijuana plants can adapt to fit the space available. Realistically however, you’d probably be best to assume that your plants will grow to a metre or so indoors. So make sure that there’s enough space for that, or be prepared to get to grips with plant training.


Cannatonic marijuana seeds

You’ll collect your harvest after 9 to 10 weeks of flowering indoors or in early/mid-October outdoors. Marijuana plants need space to spread horizontally as well as vertically. This is particularly true of strains with a high level of Indica genetics.

Unless you give your plants enough space, they’re going to start bumping in to one another. Then you are at high risk of mould due to the reduced ventilation. And once mould does strike, the chances are that it’s going to spread from plant to plant very quickly. In short, if you pay attention to your marijuana basics, especially ventilation, you should be fine with this strain.

If you’re growing outdoors, you are going to have to think about keeping your plants sheltered from cold, wind and rain up until the start of October. If you’re towards the northern end of continental Europe, you may want to think about splitting the difference and growing under glass, or indoors. Once you reach the UK, then you probably want to treat this strain as being an indoor variety.

We’ve classed this strain as being moderately difficult to grow, mainly because it’s a photoperiod strain and because of its height.


We’re going to point out that the taste of Cannatonic is grounded on a base of diesel. Although the taste is on the lighter side and is balanced by sweetness. With clear notes of pine and lemon. The aroma is the same. If you’re on the fence about diesel, then we’d suggest at least giving this strain a try and seeing how you feel about it.

Bag Appeal

The low THC content means that there’s relatively little in the way of dazzling white trichomes, but there are still a few for a light touch of glitter.

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