Martins Mushroom Compost is an organic by-product of the Australian mushroom growing industry. It is the composted material remaining after the mushrooms have finished cropping, which is a perfect compost for the home garden. Mushroom Compost is very beneficial to the soil and contains sufficient nutrients needed for plant growth by supplying the nutrients slowly. Itimproves the soil structure by adding organic matter to the soil and reduces soil compaction. Mushroom Compost has a high water retention rate therefore improves drainage and conserves soil moisture. Martins Mushroom Compost is a valuable garden additive for all types of soils and plants, ideal for: Flowering plants Trees and shrubs Vegetable gardens and herbs Establishing lawns Not recommended for some native plants and acid-loving plants such as azaleas, camellias and rhododendrons. Martins Mushroom Compost is environmentally friendly and is best used when mixed with your garden or vegetable bed as a soil conditioner. Mushroom Compost is also used as mulch