Rock Phosphate

Espoma Organic Rock Phosphate is an all-natural mineral that has been pelletized for easy application with less dust. Phosphate is an essential nutrient needed by all plant life and helps promote root growth and flowering. Like all Espoma Organic products, no sludges or fillers are ever used. And because it’s made in our state-of-the-art solar powered manufacturing facility, consistency and quality are guaranteed.


  • Helps Correct Phosphorus Deficient Soils
  • Promotes Root Growth & Flowering
  • Pelletized for Easy Application
  • Safe for People, Pets & Planet

For use on:

All  plants – phosphorus is a major plant nutrient that promotes blooming and root growth.

When to use:

New Beds – Mix into the soil prior to planting.

Established Plants – Use in the early Spring

How much to use:

Application Rate: 2 ½ pounds (5 cups) per 100 square feet
Spread Rock Phosphate evenly over the entire area. Mix with soil before seeding or planting.
Individual Plants: Mix 4 teaspoons into soil.

How to apply:

Mix into the soil prior to planting or sprinkle on the soil surface around the drip line of established plants Gently mix into soil without disturbing plant roots.  Water after the application.

Available Currently Unavailable

1 lb. equals 2 cups

All-Purpose Garden Soil

All Purpose Planting Mix

  • In 1 cu. ft. bags
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Before you head to the garden center, please call to confirm product availability.

7.25 LB. 28 LB.

Rock Phosphate 7.25 LB.