Microbial Inoculant Mammoth P

by Mammoth


    Microbial Inoculant Mammoth P - 120ml



    Microbial Inoculant Mammoth P - 250ml



Product Description

MAMMOTH P is the first organically derived microbial inoculant that maximizes phosphorus and micronutrient cycling to maximize bud growth, increase yield, and enhance plant health.

The Benefits:

  • University Developed - Developed by Growcentia’s founders at a leading US university using next-generation technology. Extensively tested by Colorado growers, and proven to increase growth by independent labs.
  • Beneficial Bacteria - Our beneficial bacteria act like micro bioreactors, continually producing enzymes that release nutrients. Reduces the need for a separate enzyme additive.
  • More Phosphorus - Increased levels of phosphorus keep internodes shorter and focuses energy on bud production.
  • Safe For All Media - Safe for use in soil, soilless, and hydroponic systems.
  • Protects Rhizosphere - Shields the plant rhizosphere by outcompeting potentially harmful pathogenic microbes.
  • Fully Compatible - Use as a supplement to any fertilizer program.

Effectiveness Data:

MAMMOTH P was developed by Growcentia’s founders at Colorado State University using next-generation technology. MAMMOTH P has been tested extensively by Colorado growers and independent labs have proven to increase cannabis 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, soilless, and hydroponic systems. Using MAMMOTH P in hydroponic systems is an excellent way to introduce the organic benefits of soil microbial nutrients without sacrificing water quality. MAMMOTH P was engineered to supplement any fertilizer program.

  1. 16% Increase Trimmed Sellable Yield - Dry flower per plant (grams)
  2. 6% Increase Stem Strength - Density (grams)

Out-Growing the Competition:

MAMMOTH P is differentiated from competitors’ products in several ways...

  1. First - Our development platform focuses on nutrient cycling processes to release soil P and micronutrients from bound forms, thus improving nutrient availability to plants.
  2. Second - Our high-throughput platform allows us to select soil microorganisms at the community level in hydroponic environments – which enables these bacteria to work equally well in soil, soilless, and recirculating hydroponic systems.
  3. Third - Our directed microbial phenotyping platform – coupled with cutting-edge high-throughput molecular techniques – is highly effective. Many competitor products use a non-directed approach by simply mixing microbes, which results in a microbial concoction of unknown provenance or functionality.

Effective in All Media:


MAMMOTH P contains microbial nutrition that occurs naturally in soil bacteria, making it extremely effective. The beneficial bacteria 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.

How we did it:

We grew hundreds of different microbial communities from natural soils collected across the USA. Using our next generation phenotyping platform, we 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 at over 30x higher levels than we observed from microbes in natural soils.


MAMMOTH P is effective in hydroponic systems due to the careful selection and cultivation of microbes and hydroponic nutrients that thrive in a hydro environment.

How we did it:

We 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 levels and thrive in an aqueous, high nutrient, hydroponic environment.

Super Soil:

MAMMOTH P primarily helps mobilize mineral and organic phosphates to promote healthy plant growth and improve cannabis 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 we selectively bred this microbial community to actively cycle nutrients at up to 30x greater levels than how they functioned in nature, in some cases these microbes may be too powerful to use across the entire bloom growth stage. We encourage you to use MAMMOTH P sparingly until you have more experience using the microbial nutrients product in your super soil system.

How To Use:

Since it contains live ingredients, Mammoth P has a shelf life of 24 months.
The exact dilution rate varies, depending on your stage of growth and growing method.
Remember, Mammoth P is potent, so go easy in hydro systems where nutrients are more readily available!
  • Propagation: 0.16ml - 0.26ml / Litre
  • Vegetative Growth: 0.16ml - 0.26ml / Litre
  • Flowering: 0.4ml / 1.06ml - Litre
  • Flush: 0.26ml / Litre 

Microbial Inoculant Mammoth P - 120ml

Hydro to Soil / University Tested / Bloom Enhancer

Microbial Inoculant Mammoth P - 250ml

Mammoth P - Hydro to Soil / University Tested / Bloom Enhancer

Shipping & Handling

Shipping & Handling

THS uses a selection of couriers to deliver our products to N.Ireland, Ireland, the UK and EU at the fairest rates we can negotiate.

Here's what you can expect when placing an order with THS:

Upon purchase, your order will be packaged and mailed without delay and sent to the cardholder’s address. We will always endeavour to deliver in the fastest most economical way, when shipping within Ireland and the UK.

Overseas shipment times can vary greatly, it’s advised to contact us for specific international shipping quotes.

All goods are subject to availability and a delay in delivery can sometimes be out of our control. We will do our best to ameliorate and avoid these delays whenever we can so that your order can be delivered in a timely manner. Delivery times are approximate and we shall not be held liable for any losses, damages, expenses or charges caused by any delay from the delivery of goods.

For further information please check the delivery page on the website.



We accept a variety of different payment options to allow our customers to pay in whatever method is most convenient for them. We accept Credit Cards, Debit Cards, PayPal, Bank Transfers, Cash in-store, Bitcoin, and Telephone orders.

To process your payment over the phone, call:

UK: +44 2890 994199

For online payments including Bank Transfer, Credit or Debit cards, PayPal, Bitcoin simply process your order and follow the instructions at checkout. Our credit card transactions are completed on secure and encrypted communications via 3rd party payment processing services.

For further information please check the payment page on the website.