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Mammoth P Bloom Booster Nutrient Supplement

Best Seller By Mammoth Microbes
Price: 47.77
In Stock
Estimated Arrival 6/22 - 6/26
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Product Description

Created For Growers

16% Increase in Yield. 6% Increased Stem Strength. 100% Satisfaction Guarantee.

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.

Why Mammoth?

Mammoth P differentiated from other microbial biostimulants because it is a microbial consortia that was specifically developed using a functional trait selection platform and has been rigorously tested (by scientists at Colorado State University) to mobilize P (Phosphorus) and other micronutrients for plant uptake. Mammoth P was specifically tested and is proven to increase yield by 16% across all management practices (coco, hydro, peat, etc) and nutrient lines in the bloom cycle. 

How Does it Work?

MAMMOTH P™ is the first organically derived microbial inoculant that was specifically designed to unlock P (Phosphorus) and micronutrients to maximize bud growth.

Mammoth P is a liquid formula of beneficial bacterial that can be applied directly to soil, coco or recirculating hydroponic systems.

The beneficial bacteria act like micro bioreactors, continually producing enzymes that release nutrients. Increased levels of P keep internodes shorter and focus energy on bud production.

Mammoth P naturally accelerates the nutrient supply to plants to increase plant health, bud size and quality and yield. Field trials with many growers across the Front Range have demonstrated that Mammoth P increases plant yield by an average of 16%.


"I'm very excited! I've given my plants it twice now and I already can tell a difference! The plants are looking fabulous! Frosty as ever in bloom at 39 days. And green and growing like crazy in veg. cabinet." - Anonymous Grower

"I am absolutely LOVING Mammoth P and plan on using it from now on. It works so well with my setup. I am currently running Super Soil from Build A Soil with a few additives including Recharge. Originally heard about you guys on the dude grows show - I'm a long time listener. Thank you very much for the samples you sent me. The first time I used your product my plants absolutely EXPLODED with growth! I highly recommended your product within my small circle of growers." - Jamie

"I did not get a side by side, but I did run the same strain in the same soil mix on two separate occasions. I ran it without any beneficials and just AACT, then I ran it with AACT, Mammoth P, and SLF100. There was such a marked difference in not only stem strength and yield but also in overall quality of bud. I had people accusing me of lacing the bud after a small sample. MammothP has earned a regular spot in my organic growing.  Thank you for such an awesome product!" - Anonymous Grower from Alaska

From a hydroponics grower - he is seeing a bulking and increase in density with his buds. He likes the product and will be continuing use from now on. He is using the Botanicare Kind 3-part nutrient system along with Botanicare additives and Mammoth P™. He has grown these strains before, and although he has not harvested yet, he knows there is an increase over past runs.

Nutrient Solution per Bottle

  1000 mL 500 mL 250 mL
Hydroponic 16000 Gallons 800 Gallons 400 Gallons
Soil 400 Gallons 200 Gallons 1000 Gallons


Feeding/Application Chart

Mammoth P Feeding Chart



Whats the Shelf Life?

Mammoth P is a very stable and organically derived natural product. Mammoth P stable shelf life data currently extends 16 months from manufacture date.

How Should I Store It?

We recommend storing at room temperature- ideally out of direct sunlight and away from hot or cold extremes.

Should it Smell so Much?

The bacteria in Mammoth P do have a strong smell, as they are very active and highly functional for promoting plant growth.

Is it Dangerous?

No. But, avoid contact with eyes, mouth, and broken skin. Do not inhale product. Wear eye and skin protection when handling. Wash hands after using.

Will it Cause Tank Slime?

No. 100's of growers are adding Mammoth P to their reservoirs and seeing great results. Adding Mammoth P should actually reduce tank slime. The microbes in MAMMOTH P™ can unlock bound nutrients (actively cycling nutrients and any build up) maximizing P and micronutrient availability to increase plant nutrient uptake and plant yield.

Customer Reviews

Based on 7 reviews
Charles Powell
Mammoth P

Mammoth P works wonder increases plant growth expedentially and its all natural which, is plus for us organic growers.

Michael Williamson
Mammoth p

Although it smells like dirty mop water, it does make a noticeable difference in overall plant health.

Mason Necci

I recently got some Mammoth products sent to me. They came in a wonderful packing set up. Insulation and heavy duty heating pad. Being that it was below freezing out. I really appreciated the thoughtful method. Will buy from here again.

Natalie Turner

Howdy Trevor plants are loving it reaching for the lights only 2 weeks in seeing flowers everywhere thank you

Patty Sulcs
4 star

Mammoth P Bloom Booster Nutrient Supplement

Order Confirmation 

As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase.

As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.

If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.

If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

Order Shipment

If your order is stock and we process the charges to your credit card, it will ship within five business days from the date of your order.

The one exception is our grow cabinets. These are made to order right out of California and can take 2-3 weeks before they ship.

Just hang tight, they're worth the wait :) 

We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address your provide when checking out. If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at

Your privacy is important to us, so we offer discreet shipping on all orders. We ship in plain, unmarked packages via Fedex, UPS, and USPS. For larger shipments such as our grow cabinets we ship via freight and will provide you with a Bill of Landing and tracking information. 


Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery. If your item(s) do arrived damaged, please send photos to and we will process an insurance claim on your behalf.

Cancellations & Refunds

All orders cancelled after 48 hours are subject to a $20 administration fee, whether or not your order has shipped. If your order has shipped, you (the buyer) will also be responsible for actual return shipping charges. Refunds will only be issued to the original credit card that you use when placing your order. 


If you are unhappy with your order for any reason we can help you with a free return within 30 days of receiving the item. You will need the items original packaging to make a return, so please keep it!

Just send an email to and we will take care of you. 

Shopping online is great but it can be hard to know if you’re getting the best deal.

From the the moment you click "Add to Cart", to the day your order arrives at your door, we want your experience with us to be completely stress-free.

If you’re worried about finding a better deal online, now you can relax.


Here's our promise:

If you find another store online that is offering a better price any time within six months of making your purchase, we will cover the difference. 

That’s right, we will send the money straight back to your pocket. If you buy one of our products for $100 and find it online for $90 just send an email to info@allgreenhydroponics with a link to the better priced product and we will take care of it from there.

You’ll get your $10 back right away. 

We offer this price match guarantee because we want you to be able to shop with confidence and not have to worry about if you’re getting the best deal online. With us, you always are. 

There are some requirements for us to price match:

  • We will only price match after you’ve placed an order for the product to be matched.
  • This is not valid for products on sale or offered with other promotions.
  • The product will only be price matched against other online retailers that do not have physical store locations.
  • The competitors website must show the price matched product as in stock.
  • Discount and auction sites will not be price matched (i.e. ebay, groupon, overstock).
  • Only Authorized Retailers of the product will be price matched.
  • Price matching is valid for the item price plus shipping costs, sales tax is not included. 

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