Mammoth® P Microbial & Enzymatic Yield Enhancer

In stock
SKU: MP120ml
Regular price $34.63

Mammoth P

Microbial & Enzymatic Yield Enhancer

Using next generation technology MAMMOTH P identified an ideal combination of bacteria that works in synergy to increase the release of phosphorus into plant available forms by 30X

Mammoth P test results over other microbes

  • 16% Increased Yield Results
  • 6% Increased Stem Strength

University Developed

Developed by Growcentia's founders at Colorado State University using next generation technology. Tested thoroughly by Colorado Growers and proven to increase growth by independent labs.

Beneficial Bacteria

The beneficial bacteria used acts like a micro bioreactor, that continually produces enzymes that release nutrients. Also reduces the need for a separate enzyme additive.

More Phosphorus

Increased levels of Phosphorus keep internodes shorter and focuses energy on bud protection.

Protects Rhizosphere

Shields the plant rhizosphere by outcompeting potentially harmful pathogenic microbes.

Fully Compatible For use as a supplement to any fertilizer program.

Safe For All Media

Safe for use in soil, soilless, and hydroponic systems. 

Mammoth P has been tested extensively by Colorado growers and independent labs have proven that it increases growth. All production is done at our facility in Fort Collins Colorado to maintain the highest level of quality control. This beneficial bacterial formula works great in soil, coco, and hydroponic systems. Using Mammoth P in hydroponic systems is an excellent way to introduce the organic benefits of soil microbial nutrient cycling without sacrificing water quality. Mammoth P was engineered to supplement to any fertilizer program.



Mammoth P Works Great In Soil Media, Because These Microbes Are Naturally Occurring Soil Bacteria! The Beneficial Bacterial In Mammoth P™ Are Able To Naturally Cycle More Phosphorus And Other Micro-nutrients In The Plant – Root System, Thus Enhancing Release Of The Nutrients For Plant Uptake.


GrowCentia grew 100's of different microbial communities from natural soils collected across the USA. Using this next generation phenotyping platform, they selectively bred microbes at the community level for their ability to cycle phosphorus. After propagating thousands of successive generations, a climax community was reached which was capable of cycling phosphorus over 30x higher than we observed from microbes in natural soils!


Mammoth P™ Works Great In Hydroponic Systems, Because We Selectively Bred The Microbes To Function In A Hydroponic Environment!


GrowCentia selectively bred the soil microbial communities for their ability to cycle phosphorus using deep well microplates which mimicked hydroponic reservoirs (i.e. aqueous solutions with concentrated nutrients). A climax microbial community was realized after propagating thousands of generations which could cycle phosphorus over 30x higher AND thrive in an aqueous, high nutrient hydroponic environment!


Mammoth P primarily helps mobilize mineral and organic phosphates to promote healthy plant growth and improve plant yield. These microbes are very effective at mineralizing slow release fertilizers found in many 'all in one' water only soils, such as super soil and recycled soils. Because GrowCentia selectively bred this microbial community to actively cycle nutrients up to 30x greater than how they functioned in nature, in some cases these microbes may be TOO POWERFUL to use across the entire bloom growth stage. GrowCentia encourages you to use Mammoth P™ sparingly until you have more experience using the product in your super soil system.


1. Shake bottle well before each use.

2. Mix with water following the application rate table. 

FOR BEST RESULTS, USE WITHIN 6 MONTHS OF PURCHASE. GENERAL USE / PURPOSE OF PRODUCT MAMMOTH P™ is specifically designed to increase phosphorus availability during the bloom phase, and should be used as a supplement to your regular fertilization program. Application during clone and vegetative phase will boost effectiveness. MAMMOTH P™ has a near neutral pH formulation and runs clean in any system.


Bacteria culture 1%

Total other (inert) ingredients

Alfalfa Extract 2%

Inactive/Water 97%


Soil Amending Ingredients CFU/mL

Psuedomonas putida 20,000,000

Comamonas testosteroni 40,000,000

Citrobacter fruendii 60,000,000

Enterobacter cloacae 80,000,000

Total 200,000,000 

For additional information regarding the contents and levels of metals in Mammoth P™ go to

Customer Reviews

Based on 1 review
mammoth p

it worked ok so far