- Product Details
Soft Rock Phosphate may be used with all plants.
Application Rates – always mix into soil.
- Roses, flowers, large plants and shrubs: 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.
- Trees: 2 lbs per 2″ of trunk diameter.
See ‘Plant feeding requirements‘ if you are using in combination with other products or for more information.
See ‘Feeding with organics‘ for general information on using organic nutrients.
- Additional Information
Nitrogen (N) 0 Phosphorus (P) 3 Potassium (K) 0