Growth is the biggest challenge for plants. Effective and sustained nutrition is essential for healthy growth. Coca Cola has long been seen as a potential fertilizer, but how good is it really?
First, the sugar content in Coke can disrupt the acidity levels of soil, making the environment less conducive for healthy plant growth. Additionally, the caffeine in Coke can act as an herbicide and accumulate in the soil to damaging levels over time.
Coke also contains various minerals like sodium benzoate or phosphoric acid that are toxic to many plants. Exposure to phosphoric acid may lead to decreased plant root size and difficulty absorbing other vital nutrients from soil. This causes a severe lack of nutrients that inhibits proper growth leading to wilting and dying plants.
Though some believe Coke will help with fertilization, its high levels of sugar, caffeine, and acids make it highly unsuitable as a fertilizer. Furthermore, its accumulation in soils kills beneficial microbes which can further weaken plant health and development. Therefore, Coke should not be used when attempting to generate healthy plant life.