Mario Super Soil Soft Rock Phosphate, 5lb

Soft Rock Phosphate | Organic Phosphorus-Rich Soil Amendment & Fertilizer

Boost root development and plant health with Soft Rock Phosphate, an organic soil amendment rich in natural phosphorus.

What is Soft Rock Phosphate?

Soft Rock Phosphate is mined in Florida, which was formed millions of years ago from the mineralized remains of marine creatures.

Soft Rock Phosphate is a slow release fertilizer. It contains 20% phosphates; however it only has 3% phosphorus that is immediately available. The rest of the phosphorus will be released over as many as five years depending on soil conditions, to give your plants a continuous source of this macronutrient.

Soft Rock Phosphate provides long term building of phosphorous., it is also a good supplier of silicon, it has a decent amount of boron in it, and then a whole bunch of other trace minerals, about 60 trace minerals all together. Soft rock phosphate is a long lasting amendment, it does not leave your soil, it holds calcium in your plants root zone.

Benefits of Soft Rock Phosphate

Soft Rock Phosphate is a beneficial source of carbon for improved plant energy and beneficial bacterial and microbial populations. Soft Rock Phosphate is beneficial for acid soils because of its high calcium content that aids in neutralizing acidic soils.

How to use Soft Rock Phosphate

1 cup per plant early in season (or at planting). Vegetable gardens/beds: 10 lbs per 100 square feet, per month. Containers: 2 tablespoons per gallon of soil at planting.