Bonide 158 Root and Grow Plant Starter, 40-Ounce Root And Grow Plant Starter. Chemical Pesticides and Herbicides Manufacturer: BONIDE PRODUCTS INC P Manufacturer part number: 158 Root and grow plant starter Vitamin B1 plus IBA make this the most balanced and effective plant starter and root stimulator This product 40 ounce bonus size Apply to developing fruit and foliage after periods of heavy rain or during rapid growth periods