Roots Organics Super Phos Rock
Best phosphorus supplement for gardeners seeking denser, higher-yielding flower harvests.
This is the heavy-duty solution for growers looking to pack on serious flower density. It delivers a potent, concentrated dose of phosphorus and calcium, but you must use it with a light hand to avoid overwhelming your plants.
$15.49
at
CapCityHydro (Capital City Organics)
More Super Phos options
Who it's for
- Busy gardeners preferring low-maintenance, long-term soil feeding
- Organic gardeners seeking certified, natural input materials
- Flower and fruit growers aiming for maximum yields
Who should skip it
- Container gardeners looking for easy top-dressing applications
- Gardeners with alkaline soil needing immediate nutrient availability
- Growers needing an urgent fix for severe nutrient deficiencies
Performance breakdown
Phosphorus Potency
Delivers a concentrated nutrient punch for aggressive floral development.
Calcium Density
High calcium levels significantly bolster structural integrity and plant heft.
Nutrient Availability
Fast-acting formula ensures plants access essential minerals without unnecessary delay.
Application Precision
High concentration requires careful measurement to avoid potential nutrient burn.
Ethical Sourcing
Bat-friendly extraction methods prioritize ecological responsibility during the harvesting process.
Ease of Integration
Granular form blends seamlessly into existing soil amendment routines.
Key Specs
NPK Ratio
0-12-0
Derived From
Phosphate Rock
Weight
55.2 lbs
Dimensions
23 x 14 x 4 in
Calcium Content
24% available
Phosphorus Content
12%
Package Weight
55 lbs
Release Type
Fast Release
Fertilizer Form
Granular
Nitrogen Percentage
0%
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