Composts Home / Compost, Fertilisers & Pest Control / Composts / Miracle-Gro® Houseplant Potting Mix Peat Free Compost 10L Miracle-Gro® Houseplant Potting Mix Peat Free Compost 10L Miracle-Gro® Houseplant Potting Mix Peat Free Compost 10L £4.80 RRP: £4.99 Add to your Wish List Miracle-Gro Peat Free Premium Houseplant Potting Mix is part of the high-performing Miracle-Gro peat-free range. With its unique 3-part patented formulation, this peat-free compost caters for the needs of houseplants and will feed for 3 months. This unique compost provides the optimum structure for roots to grow strong and controls water availability according to their needs.