Miracle-Gro Peat Free Premium Azalea, Camellia, Rhododendron Ericaceous 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 Fibre and Waterlock Technologies to ensure your ericaceous plants have all the nutrients they need to survive.