Feeding a plant molasses is just like feeding a person an energy bar. Plants need sugars and carbs and all that good stuff to do what they need to do (grow), and molasses is nothing but a thick sugary solution, so basically by mixing some in with your water you're basically giving your plant an energy bar. Also molasses works at a chelating agent (makes alot of nutrients more readily available to your plant for use) i've always used it so i have nothing to compare against but molasses is GREAT for your plants.