Start African daisy seeds by planting them indoors 8 to 10 weeks before the last frost, or sow them directly into the soil. They need full sunlight and regular watering, and grow well in well-drained fertile soil. They grow easily, and apart from an occasional trimming and deadheading and a watchful eye for pests and fungus, they need very little maintenance.
When planting African daisy seeds in the garden, use a rake to break up the soil, and work in a general purpose fertilizer or some organic compost. Sow the seeds on the surface of the soil, and press lightly. After planting, water the soil immediately, and continue to water every two or three days until the seeds germinate. While the plants are growing, water them about once a week, but avoid wetting the leaves, as African daisies are susceptible to fungal diseases. Beware of over-watering, which weakens the plants and can cause root rot.
If mold becomes a problem, use a general purpose fungicide. Watch out for aphids, and use repellents or insecticides to get rid of them. Deadheading spent flowers promotes more blooms. However, African daisies have a tendency to become invasive, so to control the plants and prevent them from reseeding, cut off the flower heads as soon as they begin to fade.