Our best all-purpose potting mix is ferti-lome Ultimate Potting Mix. Johnson's recommends Ultimate Potting Mix for superior plant performance. Use Ultimate Potting Mix for indoor plants, outdoor plants, or germinating seeds. Get beautiful results in your hanging baskets, too. It's ideal for a wide number of plants, shrubs, flowers, vegetables, tropical plants, seedlings, and cuttings. Built for optimum water retention, without cheap fillers. 50 qt. bag.