Water Agapanthus africanus regularly during the growing season, allowing the soil to dry slightly between waterings. Reduce watering significantly in winter, especially for potted plants, to prevent root rot.

Ensure good drainage to avoid waterlogged conditions.

After flowering, prune Agapanthus africanus by removing spent flower stalks at their base. This prevents seed production and encourages the plant to direct energy into foliage and future blooms.

Cut back any dead or damaged foliage in late winter or early spring.

Agapanthus africanus can be propagated by division of established clumps in spring or by seed. Seed propagation is slower, and resulting plants may not be true to type.

Divisions should be replanted promptly into well-draining soil.

Repot Agapanthus africanus every 3-4 years, or when the pot becomes overcrowded. Spring is the ideal time for repotting.

Use a well-draining potting mix and choose a pot only slightly larger than the previous one, as Agapanthus prefers to be slightly pot-bound.