Nature's Source All Purpose Plant Food is an easy, efficient, and effective way to feed your flowers, trees, shrubs, turf, vegetables and herbs naturally. Its concentrated formula is easy to mix and goes a long way - with just 1 tablespoon making one gallon of plant food outdoors and 1 teaspoon making 1 gallon of plant food for houseplants. Its renewable oilseed extract formula also includes Boost Molecules to improve overall plant health. Safe around children and pets when used as directed. Free of pathogens and heavy metals. 32 oz. concentrated liquid formula.