Sugar water will be more harmful to plants than beneficial in the long run.
Plants create their own sugars from scratch through photosynthesis using carbon and hydrogen.
They do not have the metabolic pathways to absorb, digest, or process ready-made sugar.
Fertilizing plants with sugar water can be harmful due to their inability to actively pump fluids through their tissues.
Instead, they rely on plant membranes (osmosis) and capillary action.
A high concentration of sugar in your irrigation water will cause osmotic pressure to pull water out of the plant instead of uptake by the roots.
Therefore, water with a high sugar content is more likely to harm the plant by making it weak.
The absorption of sugar by the roots will lead to problems that seriously affect plant growth.
