The Grahamstown African hyacinth is very easily cultivated in gardens and containers. They are best grown outdoors in terracotta pots in full sun to semi-shade, in a warm climate. The bulbs should be planted in a sandy, loam soil or well-drained, sandy organic potting medium, with sifted kraal (cattle) manure or well-aged compost added. Watering should be done mainly during the summer growing season. The pots should be dried out during the dry winter rest period. They prefer a warm growing season but can withstand very cold temperatures in winter, providing the soil is kept completely dry and the plants are dormant. During the dry winter dormancy period, the pots should be moved out of the rain and placed in a dry, cool area with good air movement. Watering can commence at the onset of warmer weather (August to October). Adult plants can become afflicted with scale insect and mealy bug especially if the cultural conditions are not ideal. Both of these maladies can be managed with a systemic insecticide. Ants will often bring and spread such infestations and as such, it is best to manage ant populations where the plants are housed.

Propagation from seed is the best method of producing new plants. Seed must be sown fresh (cannot be stored) in spring or summer, in deep seed trays filled with the sifted potting mixture, detailed above. The seed can be sown on a firmly tamped surface and pressed into the soil, then lightly covered with the same mixture, approximately 2–3 mm deep. The seed trays should be kept in a bright, warm position out of direct sunlight and kept damp for between 2 to 3 weeks, until germination has commenced. Once the seedlings have emerged, watering can be reduced. The seedlings can be pricked out into community pots or individual containers after their first year of growth. Repotting should be done shortly before the onset of warmer temperatures. Flowering size bulbs can be attained after 3 to 5 years.