Nursery Planting Mix was developed based on requests from master gardeners and nursery growers who wanted a lower pH blend for trees and shrubs that need a higher level of acidity. Sold for years in bulk as woodland planting mix, we learned recently that this combination of high quality sphagnum and compost used in the mix helps build populations of beneficial fungi. These microorganisms are particularity important in maintaining good nutrient cycling in woodland systems and in maintaining plant health. This mix is excellent for Rhododendrons and Azaleas as well as most plants that are native to the deep woods. Our Nursery Planting Mix is available in 32 quart bags and in bulk.