Schultz Liquid Plant Food (10 – 15 – 10) is a fantastic product for making plants grow. Its not just for transplants, it’s used for flowers that are not growing properly, or for plants that have refused to bloom. Using Schultz Liquid Plant Food is a cinch. It comes in a plastic 118ml bottle with a rubber tube attached, the same as in ear drops. Add the recommended 7 drops of plant food per litre of water. This plant food works on outdoor plants too.