Mammoth P
Best microbial booster for gardeners seeking larger, more abundant plant yields.
This microbial inoculant acts as a biological unlock for your soil, forcing plants to absorb phosphorus they otherwise couldn't reach. You trade the simplicity of standard fertilizers for a more complex, living ecosystem, but the payoff is visibly denser roots and significantly heavier harvests.
$42.84
at
Indoor Growers Edge
Who it's for
- Gardeners seeking maximum nutrient absorption for larger blooms
- Serious growers aiming for higher biomass and flower density
- Cultivators using diverse soil or hydroponic growing systems
Who should skip it
- Budget-conscious hobbyists looking for affordable nutrient supplements
- Growers unable to manage specific storage or shelf-life needs
- Beginners preferring a simple, low-maintenance feeding routine
Performance breakdown
Phosphorus Bioavailability
Specialized microbial action unlocks locked-out nutrients for superior root absorption.
Application Ease
Highly soluble liquid concentrate integrates seamlessly into any existing watering routine.
Yield Enhancement
Consistent use drives noticeably heavier flower sets and more robust fruit.
Root System Development
Promotes aggressive, healthy root architecture for better overall plant vigor.
Versatility
Effective across diverse plant species from delicate houseplants to heavy-feeding vegetables.
Growth Stage Compatibility
Safe and effective for supporting plants throughout their entire lifecycle.
Key Specs
Form
Liquid Concentrate
NPK Ratio
0-0-0
Shelf Life
2 years
Solubility
Highly soluble
OMRI Listed
No
Fertilizer Type
Microbial Inoculant
Country of Origin
USA
Active Ingredients
Proprietary blend of beneficial bacteria
Fertilizer Source
Natural
Nitrogen Percentage
0%
Know before you buy
Still have a question?
Ask Metto anything about the Mammoth P before you decide.