Brunnings Garden Lime is the ideal medium for correcting pH of soil to help nutrients become more available to the plant, especially in high rainfall areas where lime may be leached from the soil. Helps to aerate heavy soils and contains Magnesium and Calcium to assist in plant growth. Ideal for use when growing sweet peas, peas, chrysanthemums, roses, cactus and corn as well as aiding as a composting agent. Apply once per year.