How to use Canna Boost to grow better weed plants

Canna Boost is a flowering enhancer for weed plants.Canna Boost  is a flowering stimulator for marijuana that claims to boost overall bud size, weight, and potency. We’ll show you how to use Canna Boost to maximize the quality and quantity of your indoor weed plants. We’ve been using it for years with great results, and we describe how in the Canna Boost review below.

Start using Canna Boost at the first sign of bud development, usually about 1-2 weeks after flipping to 12-12 lighting to induce flowering. Outdoor growers using Boost should begin at first appearance of buds.

Boost can be applied by adding directly to your nutrient solution. It’s suitable for manual watering, automated drip systems, or in hydroponic nutrient solutions. It can also be applied as a foliar spray. Make sure to shake well, it tends to settle.

Canna Boost can be used across the four lines of Canna base nutrients for growing weed. It can also be used with other companies’ nutrient lines as well, and with all growing substrates.

Weed growers using coco coir will run the Canna Coco line of nutrients, which consists of:

Canna Boost feed chart

The standard Canna Boost feed chart dosage is 40 ml per each 5 gallon bucket of water. Use 8 ml per gallon (or 2 ml per quart/liter) to make smaller amounts.

The 1 liter bottle of Canna Boost will let you mix 25 5-gallon buckets.The same ratio should be used if you’re using Boost as a foliar spray.

A 1 liter bottle of Boost will make 125 gallons of watering solution. This is the best size for small and medium-sized cannabis grows of 4-6 plants.

The 250 ml size of Boost will make just over 31 gallons of mix. It won’t be enough for a full flowering cycle unless you’re growing one or two very small plants. It’s also much more expensive at this size.

The 5 liter jug of Boost is usually about 20% cheaper per liter than the 1 liter size, and is a more economical solution for larger grows.

The bottle instructions discuss doubling the Canna Boost feed chart dosage to 16 ml per gallon. Doubling up is your call, but you’ll spend twice as much — so I don’t do it. But I do often pour a heavier mix (maybe 10-12 ml/gallon) starting around weeks 4-5 when trichome production and bud development is really start picking up.

Canna Boost review: is it worth the money?

Canna Boost is much more expensive than the other nutrients in the Canna nutrient lines. So the big question of any Canna Boost review: is it worth it?

Our experience with Canna Boost has been very positive. The buds look frosty and have a deep earthy smell and taste compared to identical clones of the same cannabis strains grown by others with different flowering enhancer products.

Typically the price I’ve seen across Hydro shops is about $85 for 1 L of Canna Boost (it’s a bit cheaper on Amazon). The dosage for a Canna Boost is 40 mL per 5 gallons of water. So for each 5 gallon bucket you fill up, you will use approximately $3.40, assuming the cost is 8.5 cents per milliliter.

It’s considerably more expensive if you buy the 250 ml bottle of Boost ($35).  The best value if you plan to run multiple grows is the Boost 5 liter bottle, but it’s a big investment at $280+. Part of the reason people look for Boost alternatives.

The big Canna Boost review question: is it worth the money? We’ve had very good results. Nice crystally results. Powder-white trichome blanket results (even on much of the fan leaves) across many different strains. So we continue to use it when we grow marijuana plants, despite the cost, and we’re hesitant to look for a Canna Boost alternative.

Caana Boost is used during the flowering stage of marijuana growth in order to improve the quality of your buds
Caana Boost is used during the flowering stage of marijuana growth in order to improve the quality of your buds.

What is Canna Boost and how does it work?

According to the Canna website, Canna Boost is “a liquid metabolism elicitor with high energy content, and without any added plant growth regulators.” So what does that mean?

Chlorophyll allows cannabis plants to synthesize the carbohydrates that it needs to grow and function. Canna Boost helps the plant produce more chlorophyll which increases the rate of photosynthesis. By speeding up marijuana plants’ metabolism, you allow the plants to increase their nutrient uptake.

What’s in Canna Boost? Some of the active ingredients are carbohydrates that are by-products derived from the production of bio ethanol and yeast, and through the fermentation of molasses (from sugar cane, sugar beet, and palm). The resulting saccharides are fermented to remove simple sugars.

This fermentation process creates CannaBoost thick blend of saccharides, proteins, amino acids, and other compounds.  The process takes a long time and is very involved according to Canna, with many steps including the introduction of specific microorganisms. Presumably this level of effort  contributes to the hefty price tag.

Alongside a balanced nutrient schedule, a flowering booster like Boost optimizes the plant’s feeding process and allows a marijuana plant to grow to its full potential.

Canna Boost can be used with any line of nutrients, including the four major Canna nutrient lines. But avoid using Boost with products containing hydrogen peroxide. Store away from bright light, and avoid extreme heat and cold. Don’t keep it near your grow lights.

Chlorophyll is made up of amino acids. It allows the plant to synthesize the carbohydrates that it needs to grow and function. Canna Boost helps the plant produce more chlorophyll which increases the rate of photosynthesis.
Canna Boost helps the plant produce more chlorophyll. This increases the rate of photosynthesis which allows the plant to synthesize the carbohydrates that it needs to grow and function.

What’s the best Canna Boost alternative?

Bud candy is a cannabis flowering enhancer and stimulant that's a good Canna Boost alternative.Need a Canna Boost alternative? Here’s a few to consider:

Since Boost has consistently worked out so well I’m hesitant to try any of these other cannabis flowering enhancers. If you’re switching to one of them as a Canna Boost alternative, make sure to take into account that some of these products contain more Potassium and Phosphorus that Boost does, so you’ll need to adjust your other nutrients accordingly.

Is molasses a substitute for Canna Boost?

Some growers use molasses as an additive when watering weed during the flower cycle. Molasses is the byproduct of sugar production, and contains carbohydrates that are beneficial for marijuana bud development during flowering.

Canna Boost does look somewhat similar to molasses, although much less thick. But the dark syrupy appearance  invites the question on whether molasses can be used as a DIY Canna Boost alternative.

One thing to consider when comparing Canna Boost to molasses is that there are many other things in Boost beyond what molasses can offer due to the multiple production steps and fermentation processes. At least the Canna site will tell you so.

As a grower friend remarked when I asked if he ever used molasses to enhance flowering in cannabis, “that shit’s for old hippies.” So who knows.

When should Canna Boost be used on weed plants?

250 ml bottle of Canna Boost, suitable for very small cannabis grows. The Canna Boost feed chart above should be used throughout the entire flowering cycle, beginning at the first appearance of buds. Depending on the weed strain this is usually 1.5 to 2 weeks after inducing flowering by switching to 12 on – 12 off lighting (or at the appearance of flowers on outdoor plants).

You should continue to use it even through the final week of your plants flowering stage, when typically most growers will flush with plain water.

After you flush, make up a small amount of very concentrated Boost solution with 15 ml per gallon of pH’d water, about double the normal dosage of 8 ml per gallon. A few hours after completing flushing, slowly add the Boost solution and water to runoff. Apply again the next day.

This helps replace the Boost that was washed out during your flush, to improve the taste and smell of the bud during final stage of the flower ripening process.

Should you use Canna Boost during the vegetative growth stage?

No way. It is a complete waste of money to use Canna Boost during the vegetative period of growth of your marijuana plants.

Boost is meant to be used only during the flowering cycle, when carbohydrates are most beneficial to the developing buds. Using Canna Boost during vegetation is silly, you’re literally just pouring your money down the drain.

Can I use Canna Boost as a flowering booster alongside nutrients lines from other companies?

Well, the sales folks over at Canna recommend using Boost with their own nutrient lines. It’s literally the #1 rule on their Boost usage instructions webpage.

But Boost can be used with other lines of nutrients from other nutrient companies. You may want to make sure that you’re not using something similar that may potentially interact with it, but in general Boost is safe to use alongside all nutrient lines. Just avoid anything with hydrogen peroxide, which will negatively impact Boost.  Note that most cannabis nutrient lines will have their own version of Canna Boost alternatives, and some are much cheaper.


Canna Boost is an additive use during the flowering cycle of marijuana plants as part of the Canna line of nutrients. It allows buds to develop fuller and more potent with a sweeter taste.

Our Canna Boost Review summary: It’s pricey at over three dollars per 5 gallons of nutrient solution, but the trichome-rich appearance and sweet rich flavor of the buds results that justify this expense. While there are Canna Boost alternatives out there, Boost is well worth the money.

How to use Canna Boost to grow better weed plants
Article Name
How to use Canna Boost to grow better weed plants
We'll show you how to use Canna Boost to maximize the quality and quantity of your indoor weed plants. Learn proper dosage for using Boost.
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Happy Pot Farmer
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