Roots Organics Super Phos Rock
Best phosphorus source for enhancing flowering and fruiting yields.
This is the gold standard for gardeners who prioritize ethical sourcing without sacrificing raw performance. It delivers a potent, fast-acting boost of phosphorus and calcium for explosive root growth, though you will need to exercise restraint to avoid over-fertilizing your soil.
$101.06
at
HydroBuilder
More Super Phos options
Who it's for
- Gardeners aiming for abundant harvests and strong plant reproduction
- Organic farmers and home growers prioritizing natural soil amendments
- Cultivators seeking enduring soil health and consistent nutrient availability
Who should skip it
- Growers needing rapid nutrient uptake for stressed or deficient plants
- Home gardeners or those with limited storage and physical capacity
- Users in alkaline soil conditions who prefer minimal pH adjustments
Performance breakdown
Phosphorus potency
The 14% phosphorus concentration delivers a serious boost for root development.
Sourcing ethics
Consciously harvested methods ensure a bat-friendly approach to soil enrichment.
Application versatility
Works effectively across a wide range of vegetables, flowers, and trees.
Nutrient availability
Fast-acting formula provides plants with immediate access to essential minerals.
Handling convenience
The heavy 55-pound bag is cumbersome for casual home gardeners to manage.
Solubility profile
Non-water-soluble composition requires manual soil mixing for proper nutrient integration.
Key Specs
NPK
1-14-0
Derived From
Phosphate Rock
Package Weight
55 lbs
UPC
799493712308
Hydrofarm SKU
ROSPR55
Release Type
Fast Release
Primary Benefit
Root Growth
Water Soluble
No
Pet/Child Safe
No
Nitrogen
1%
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