Miracle-Gro© Peat Free Premium Azalea, Camellia & Rhododendron, Special Plants Compost is part of the high-performing Miracle-Gro peat-free range. Specially formulated to cater the needs for all ericaceous plants that love acidic growing conditions, this peat-free compost contains patented Smart FibreT and WaterlockT Technologies to ensure your ericaceous plants have all the nutrients they need to survive.