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.
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.