Fertilization for African daisies should be done at the beginning of the growing season and then regularly throughout the summer. A balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium (such as a 10-10-10 or 20-20-20 formula) is ideal. It is also a good idea to use a fertilizer that contains micronutrients such as iron, zinc, and magnesium. African daisies do not require heavy fertilization, so it is important not to over-fertilize as this can result in excessive foliage growth rather than flowers. Follow the package instructions for the appropriate amount of fertilizer to use and apply it to the soil around the plant, being careful not to get any on the leaves or flowers.