Out of Stock
N-P-K | 0 – 7 – 0 with Ca 14%

Phos Rock is a completely natural source of phosphorus and calcium. Available in powdered form, Phos Rock is carefully processed and sifted to make it easy to work with and encourages vigorous flowering and fruiting. Phos Rock may be used sporadically throughout the entire plant life cycle.

Certified 100% Organic and GMO-Free.

Out of stock

SKU: ROPR Categories: ,
Phosphate Rock




Phos Rock delivers a completely natural source of phosphorus and calcium to encourage vigorous flowering and fruiting.  Processed and sifted for easy handling, Phos Rock is sourced for quality using habitat-friendly methods – So you and your garden get performance with principles!



Container Gardening / Top Scratch
Add 1 tsp (5 ml) per 1 gallon of soil. Add 2 tsp (10 ml) per 5 gallons of soil. Add 1 TBS (15 ml) per 10 gallons of soil.
Liquid Application
Add 1 TBS (15 ml) per gallon. Mix for 24 to 48 hours and water in direct.
Vegetable Gardens and Flower Beds
Add 2 – 4 lbs per 100 square feet and mix into soil.


Weight 3 lbs
Dimensions 16 × 9.5 × 4.5 in
Available In

3 lb

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