Due to the complex interaction between plant nutrients, it is often very difficult to pinpoint the precise element causing problems. Often, an excess of one element will cause a deficiency in one or more other elements, and vice versa. Short of sending your plant to a laboratory for testing, you will probably have to be satisfied with simply knowing that your African Violet suffers a nutritional imbalance without knowing the exact elements involved. This said, do not be discouraged. Other Symptoms Leaves are smaller than normal .
Plant growth is slow .
Treatment Ideally, after you have ruled out the possibility of shock, your next course of action would be to test the soil for a pH imbalance . If that were possible, you would want to make sure the soil had a pH between 5.8 and 6.2. With this in mind, here is what you should do. First, repot your Violet with fresh potting soil. After separating the rootball from its container, shake as much of the old soil from the roots as you can without disturbing the roots too much.