Roots Organics Super Phos Rock
Best phosphorus supplement for gardeners seeking denser, higher-yielding flower harvests.
Roots Organics Super Phos Rock is a premium, concentrated natural phosphorus source derived from phosphate rock, offering a potent 0-12-0 NPK ratio. This amendment is consciously extracted using bat-friendly methods, ensuring an eco-conscious approach. It delivers a significant boost of phosphorus along with 24% available calcium, which is crucial for maximizing plant heft and improving overall yields. Super Phos Rock functions effectively as a targeted flower hardener, promoting vigorous flowering and fruiting for healthier, more abundant harvests.
$15.49
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Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4425
#50 in Fertilizers
Price vs Category Average
-75%
Below average
NPK Ratio
0120
/ --
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
Features
- High phosphorus and calcium content for plant growth
- Fast-acting formula for immediate nutrient availability
- Consciously extracted using bat-friendly methods
- Maximizes plant heft and improves yields
- Acts as a targeted flower hardener
- Carefully processed and sifted for ease of use
What customers say
Customers consistently praise the exceptional quality and noticeable effectiveness of Roots Organics Super Phos Rock. Reviewers report significant improvements in flower development and fruit yield, valuing its reliable slow release action. This organic amendment is easy to use and delivers tangible results without the harshness of synthetic fertilizers. Consumers confidently integrate this rock phosphate into their feeding schedules, recognizing it as foundational for robust plant structure and vigorous blooming. The product earns high marks for performance and simplicity, making it a trusted choice for growers seeking superior results.
Know before you buy
This amendment is designed to provide a concentrated boost of phosphorus and calcium to your plants. It is specifically used to encourage vigorous flowering and fruiting, acting as a hardener to increase overall plant heft and yield.
Because this product contains no nitrogen or potassium, it is a targeted supplement rather than a complete fertilizer. You should use it alongside your existing base nutrient program to specifically address phosphorus and calcium deficiencies during the flowering stage.
Yes, Roots Organics Super Phos Rock is derived from natural phosphate rock and is sourced using bat-friendly methods. It is an excellent choice for growers looking to maintain organic practices while providing high-performance mineral supplementation.
This amendment contains 24% available calcium. This high concentration supports structural integrity in your plants, helping them support heavier flowers and fruit as they reach maturity.
Yes, this product is effective for both indoor and outdoor gardening. Its concentrated, granular form makes it easy to incorporate into soil or growing media regardless of your environment.
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