Vinegar concentrates make effective organic weed killers with almost immediate results. … 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.
People also ask, can I spray my plants with white vinegar?
It will probably come as no surprise to you that vinegar is extremely acidic. Luckily, there are lots of plants, including hydrangeas, rhododendron, gardenias, hollies, and azaleas that love being grown in acidic soil. Just spray them with a mixture of a gallon of water and a cup of white vinegar.
Also know, how much vinegar will kill a plant?
A higher concentration of acetic acid will kill some plants, but you need to use at least 20% acetic acid. Some sources still call this vinegar, and I suggest that this is a bad idea. We all know vinegar as something that is fairly harmless. 20% acetic acid should be considered to be a dangerous chemical.
How do you clean plants with vinegar?
The best way to clean water spots off plant leaves is to combine water and vinegar, then gently wipe away the spots. A recipe of half a gallon of water and half a teaspoon of vinegar is best to avoid damaging the leaves and soil. Be sure to avoid using cold water.
Wash the infested plant with insecticidal soap, or use a mild liquid soap. Soap kills houseplant bugs on contact. Be careful with the type you use though. Some contain degreasers and detergents that can harm sensitive plants.
Most of the treated weeds should wilt, and their leaves should die within 24 hours. Wait two or three days and remove the dead foliage before planting in the bed. Wait at least two weeks before spraying again.