Rootmaster Soil Conditioner and Tree and Shrub Planting Compost is a compost medium to be added to improve soils. Adds organic matter increases nutrient content and aids water retention. Rootmaster is an organic material composite. Primary ingredients include chicken manure, straw, well rotted farmyard manure and some trace elements. all composted and blended together. Rootmaster Tree Shrub Planting Soil Conditioner Compost is available in 80L Bags