Can vinegar hurt plants?
Keeping this in view, what happens when you spray vinegar on plants?
Spraying the solution directly on a weed strips off the foliage's waxy cuticle that protects the plant's cells from losing water. This causes the weed to dry out down to the root. Unfortunately, if the spray touches a valued garden plant, it will kill that plant as well through desiccation.
Herein, is white vinegar good for plants?
Though vinegar can be fatal to many common plants, others, like rhododendrons, hydrangeas and gardenias, thrive on acidity which makes a bit of vinegar the best pick-me-up. Combine one cup of plain white vinegar with a gallon of water and use the next time you water these plants to see some amazing results.
Baking soda on plants causes no apparent harm and may help prevent the bloom of fungal spores in some cases. It is most effective on fruits and vegetables off the vine or stem, but regular applications during the spring can minimize diseases such as powdery mildew and other foliar diseases.