Hi-Cal Lime raises the pH of the soil to increase the release of phosphorous and potassium from their insoluble compounds, making them plant available. Use in conjunction with gypsum on soils where the magnesium is out of balance (high). It loosens clay soil and binds the soil particles together in sandy soils. In order to be of immediate use and continue to break down gradually, the pulverized form should be used. Hi-cal lime has less than 5% magnesium oxide.
Bag - 50 lb