it's not just the sugar in molasses that's helpful. There are micro-nutrients the plant loves plus it helps the microbes in your soil. It is beneficial in several different ways. You don't want to go bat shit crazy with the stuff. Use about 1-2 tsp. per gallon. The blackstrap unsulphured molasses is the best. It has a higher ratio of micro-nutrients. One final benefit molasses can provide to your garden is it’s ability to work as a chelating agent. Basically saying that molasses is one of those substances that can convert some chemical nutrients into a form that's easily available for the plants. Chelated minerals can be absorbed directly and remain available and stable in the soil. I use molasses throughout my grows. From veg to flower. Some people say they don't notice a difference. I have seen a huge difference in the health of my plants.