Sugar. We all know it tastes great, but did you know that it has a lot more uses for issues around the house, and especially the garden? How about the fact that you can use sugar to keep bouquets alive? What about what happens when you sprinkle some sugar over the plants outside of your house?
According to an article
on SFGate, sugar helps speed up the process of photosynthesis. This keep the plants growing, but it should be noted in both of these examples that plant food would be better than sugar, and to only use sugar as an alternative when plant food is unavailable.