Does apple cider vinegar hurt poinsettias?

Apple cider vinegar is not known to hurt poinsettias. In fact, it can actually be beneficial to the plant. Apple cider vinegar is a natural acidic solution that can help to lower the pH level of the soil around the plant. Poinsettias prefer slightly acidic soil, so adding apple cider vinegar to the water can help to keep them healthy. Additionally, apple cider vinegar can help to repel pests and diseases that may harm the plant. To use apple cider vinegar on poinsettias, simply add 1 tablespoon of apple cider vinegar to 1 gallon of water and use the mixture to water the plant.