Grow More Stump Remover 13- 0- 44 will effectively help get rid of unwanted tree stumps. Removing tree stumps can be very complicated especially if the tree is old because their roots are usually extended much further into the ground. It also depends on the size, wood type, and its condition. Grow More Stump Remover will quicken the decomposition process of the stump so it can be easily removed. This product comes in a 1-pound jar and contains Potassium Nitrate as its active ingredient.