Container mix is specially designed for all plants that are planted in above ground containers and hanging baskets, indoors or out. Container mix will help regulate the water needs of plants. It will help shed water from roots in wet conditions yet will hold moisture in dry conditions when the plants need it the most. Container mix is pH. adjusted and contains a specially blended combination of sphagnum peat moss, processed pine bark, perlite, lime, gypsum wetting agent, water storing polymers and timed-release plant food. The timed-release plant food will feed plants all summer long. This is our best blended potting mix and is a customer favorite.