Can you water plants with orange juice?
Orange juice is too acidic and can break down a plant's immune system. Additionally, orange juice can promote the growth of certain types of mold, fungus, and bacteria in the soil which could harm the plant's root system. Water and nutrient rich fertilizer are the best ways to promote the healthy growth of a plant.
Orange juice is acidic, and the acidity of the juice can lower the soil's natural pH. A lot of plants require a certain pH range, but tropical plants should love the orange juice. The problem with using juice to water your plants is that the sugar can attract unwanted insects, which can inhibit your plant's growth, as well as harm them.