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Price comparison

Price data powered by pricesAPI.io

Last updated at 12/03/2026 13:57:20

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
The Grow Guys

$1,300.00

Mammoth P by Mammoth Ag - Microbial Inoculant | The Grow Guys 4L

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

General
Select ColourWhite
Country Made InUnited States

Price comparison

Updated 4 months ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
The Grow Guys

$1,300.00

Out of stock

Mammoth P by Mammoth Ag - Microbial Inoculant | The Grow Guys 4L

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

General
Select ColourWhite
Country Made InUnited States
Mammoth P / Microbe Phosphorus Booster 4L (1 Gallon Measure)
Mammoth P / Microbe Phosphorus Booster 4L (1 Gallon Measure)
Mammoth P / Microbe Phosphorus Booster 4L (1 Gallon Measure)
Mammoth P / Microbe Phosphorus Booster 4L (1 Gallon Measure)
Mammoth P / Microbe Phosphorus Booster 4L (1 Gallon Measure)
Mammoth P / Microbe Phosphorus Booster 4L (1 Gallon Measure)

Mammoth P / Microbe Phosphorus Booster 4L (1 Gallon Measure)

(1 reviews)

Mammoth P Microbe MAMMOTH P is an organically derived microbial inoculant for growing plants that maximizes phosphorus and micronutrient cycling to maximize bud growth, increase yield, and enhance plant health. 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 plant 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 plant fertilizer program.

Mammoth P Microbe MAMMOTH P is an organically derived microbial inoculant for growing plants that maximizes phosphorus and micronutrient cycling to maximize bud growth, increase yield, and enhance plant health. 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 plant 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 plant fertilizer program.

$1,300.00

in 1 offers

The lowest price for Mammoth P / Microbe Phosphorus Booster 4L (1 Gallon Measure) right now is $1,300.00 at The Grow Guys.

The all-time low was $850.00 on 30 Sept 2025 — today's price is 53% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 12 Mar 2026.

Size:

1 L

Mammoth P / Microbe Phosphorus Booster 4L (1 Gallon Measure)

$1,300.00

(1 reviews)

Mammoth P Microbe MAMMOTH P is an organically derived microbial inoculant for growing plants that maximizes phosphorus and micronutrient cycling to maximize bud growth, increase yield, and enhance plant health. 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 plant 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 plant fertilizer program.

Mammoth P Microbe MAMMOTH P is an organically derived microbial inoculant for growing plants that maximizes phosphorus and micronutrient cycling to maximize bud growth, increase yield, and enhance plant health. 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 plant 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 plant fertilizer program.

250 ml
500 ml