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March 31, 2021 at 8:29 pm by Avatar for Jim

Review: Great White Premium Mycorrhizae

Great White Premium Mycorrhizae powder and scoop

Great White Premium Mycorrhizae product photo gallery

Check out these Great White Premium Mycorrhizae review photos below for a closeup look at the 4 ounce product packaging. The label designer did a solid job of squeezing those complex scientific fungus names onto the label. One would need 20/20 vision or a magnifying glass to easily read the ingredients label. I took some closeup pictures instead. I’ve also listed the plaintext ingredients later in the review.

Does mycorrhizae help for growing cannabis plants?

cannabis roots after using Great White Premium Mycorrhizae

Check out the gnarly roots on this Maui Waui from Nirvana Shop that I grew! I used Great White Premium Mycorrhizae in the seedling mix and the roots went nuts!

Yes! I’m about to tell you why if you keep reading my Great White Premium Mycorrhizae review.

Healthy plant roots are practically a guarantee when supplementing your cannabis plants with Great White Premium Mycorrhizae – with Beneficial Bacteria and Trichoderma. Great White, as I call it for short, provides many benefits to your soil environment such as bacteria and fungus. This mycorrhizae really helps root systems explode!

Your seedlings will grow faster and recover faster when transplanting.

I rarely notice transplant shock when using Great White Premium Mycorrhizae thoroughly during transplant. I’ve grown some really nice looking roots with Great White. You can’t go wrong adding this to your soil and you can’t really over use it to the point of harming your plants, but you could waste your money by using too much. Great White Premium Mycorrhizae has never arrived with a scooping device, so I’ve always just used a spare pre-workout powder scoop and it seems to do the trick with 1 scoop per gallon of water.

At roughly $10 an ounce for the powder, some people may not want to be wasteful with this product, however, I have used more than the recommended amount with solid results. You can’t really use too much of this stuff, but it certainly hasn’t been getting any cheaper during the past several years that I’ve been using it.

Great White is definitely an essential product that I use in every grow and hope to continue using. I’ve used it on vegetables and cannabis and it works great either way. Get it for your plants because you won’t regret it. Check out some more technical stuff below, or you can read the Great White Premium Mycorrhizae safety data sheet directly from Plant Revolution (PDF)!

What is this stuff?

Great White Premium Mycorrhizae powder

Closeup photo of Great White Premium Mycorrhizae powder. The powder has an earthy biege and brown color. The smell is quite pungent, but it kind of grows on you.

Learn all you want about mycorrhizae here: https://en.wikipedia.org/wiki/Mycorrhiza

The main thing that you need to know is that the fungus builds a healthy, symbiotic relationship with the plant roots in the soil and ultimately helps your plant thrive throughout its lifecycle. Great White Premium Mycorrhizae also contains beneficial bacteria and trichoderma to help your plant thrive even more!


  • Healthier soil and plants
  • Faster root growth
  • Minimizes transplant shock
  • Made in the USA


  • Expensive at roughly $10 an ounce
  • Funky smell
  • Powder scooper not included


Great White Premium Mycorrhizae fungus label

Have fun trying to pronounce these terms.

Great White Premium Mycorrhizae powder contains the following mycorrhizal fungus:

Contains non-plant food ingredients:

  • Mycorrhiza (219,576 propagules per gram)


  • Pistolithus tinctorius – 187,875 prop/gram
  • Rhizopogon luteolus – 5,219 prop/gram
  • Rhizopogon fulvigleba – 5,219 prop/gram
  • Rhizopogon villosullus – 5,219 prop/gram
  • Rhizopogon amylopogon – 5,219 prop/gram
  • Scleroderma citrinum – 5,219 prop/gram
  • Scleroderma cepa – 5,219 prop/gram


  • Glomus aggregatum – 83 prop/gram
  • Glomus intraradices – 83 prop/gram
  • Glomus mosseae – 83 prop/gram
  • Glomus etunicatum – 83 prop/gram
  • Glomus clarum – 11 prop/gram
  • Glomus monosporum – 11 prop/gram
  • Glomus deserticola – 11 prop/gram
  • Paraglomus brasilianum – 11 prop/gram
  • Gigaspora margarita – 11 prop/gram

Contains 525,000 CFU’s per gram of each of the following 13 species:

Great White Premium Mycorrhizae species label

More complex species ingredients

  • Azotobacter chroococcum
  • Bacillus subtilis
  • Bacillus licheniformis
  • Bacillus azotoformans
  • Bacillus megaterium
  • Bacillus coagulans
  • Bacillus pumilus
  • Bacillus amyloliquefaciens
  • Paenibacillus polymyxa
  • Paenibacillus durum
  • Saccharomyces cerevisiae
  • Pseudomonas aureofaciens
  • Pseudomonas fluorescens

Trichoderma ingredients

  • Trichoderma koningii – 187,875 CFU/gram
  • Trichoderma harzianum – 125,250 CFU/gram

Information regarding the contents and levels of metals in this product is available on the internet at http://www.aapfco.org/metals.htm.

How to use mycorrhizae for plants

I’ll let the professionals from Plant Revolution explain how to use Great White Premium Mycorrhizae. Check out their video below!

How I use Great White Premium Mycorrhizae

I start using Great White Premium Mycorrhizae after I soak my cannabis seeds in water for about 24 hours. Then I get my soil ready and powder some mycorrhizae inside the hole where I plant the seed.  Use a good bit of mycorrhizae powder around the seed and it helps seeds break ground quickly and start thriving within a couple days of planting. About 1 pre-workout scoop per gallon of water when regularly feeding plants for the rest of their lives. I only stop using Great White Premium Mycorrhizae during the last couple of weeks of life in the water flushing phase.

How much does Great White Premium Mycorrhizae cost?

Great White Premium Mycorrhizae is kind of pricey compared to some other mycorrhizae products, but I feel that it is worth the cost. The 4 ounce package suffices for me and lasts a couple months, so $40 every couple of months isn’t too shabby. I would recommend only buying the size that you think you will need, as they do offer smaller and larger quantities!

You might be wondering why the product is so expensive for such a small amount of powder. Welp, it’s because the stuff simply works. It’s easy to use and it works well without having to think too much about it. There isn’t much more I can ask for from a product except to be cheaper, but we can’t blame a company for wanting to make a profit during times of currency inflation.

Is Great White Premium Mycorrhizae safe?

There are two hazard identifications in the Great White Premium Mycorrhizae safety data sheet directly from Plant Revolution (PDF). Extended exposure to the product may cause cancer and respiratory irritations, so you don’t want to get the product all over you, don’t get it in your eyes, and definitely don’t breathe it in! Avoiding the smell is another question entirely. If you’re mixing up a lot of this dust, you should probably wear goggles and a mask! I’ve seen warnings like this on many plant products, so what else is new? All I know is that it works well for plants.

Who Makes This Stuff?

Great White Premium Mycorrhizae is created by Plant Revolution, a family-operated business started in 1999. Plant Revolution’s phone number is (714) 545-5335 and their email address is info@plantrevolution.com.

Plant Revolution’s social networking pages

A Summary of Benefits

I would recommend this product to new and experienced growers! Supplementing your plants with Great White Premium Mycorrhizae is a great idea if you’re having slow root development and getting shocked plants after transplanting them. You will notice increased root system growth and overall healthier plants while supplementing with Great White. Try growing one plant without Great White Premium Mycorrhizae and one plant with it and you will easily notice the difference!

Avatar for Jim

Jim is the creator of My Weed and he has been gardening for several years. He believes in the untapped potential of cannabis, herbs, plants, and other natural compounds. Aside from gardening, Jim's other interests include cars, fitness, listening to and playing music, making websites, technology, playing with his 2 rescue dogs and just chilling!