This is a mix of Basalt, Wollastonite, Volcanophos, Gypsum, & Soft Rock Phosphate - our top recommendations for remineralizing soils.
Application Rate:
- Mix In – (When making soil) 3 cups per cubic foot of soil.
- Top Dress – 1 to 2 tbsp per cubic foot of soil.
- Equivalency Measurement - 3 cups/2 lbs
