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. The recommended treatment will remedy all nutritional problems. Other Symptoms Leaves are smaller than normal . This symptom will be most visible in the new growth, i.e., in the crown.
Leaves drop .
In cases of Zinc Deficiency, this symptom will normally indicate a severe or prolonged deficiency. Leaves are deformed or twisted . As with leaves dropping, this symptom will normally indicate a severe or prolonged deficiency of zinc. Crown leaves are smaller than normal . Plant growth is slow .