Aristeas require full sun and good rich soil with plenty of compost or peat added and regular watering throughout the year, but especially during winter and spring. Although an established plant will not easily recover if lifted and divided, it may survive if kept moist throughout the transplanting process.

In frost-prone areas, grow in a cool greenhouse and in frost-free areas grow in a border.

The smaller species are fairly well suited to cultivation in medium-sized pots, while the larger species can be grown in the rockery, among the fynbos plants. When in growth water frequently and apply a balanced liquid fertilizer monthly, keep moist at other times. Outdoors it grows in well-drained, fertile humus-rich soil in full sun.

Propagation is by division and seed. Clumps are divided in autumn, are replanted immediately and watered thoroughly. The foliage should also be reduced by about two thirds. Sow seed in autumn for species from the winter rainfall area and in the spring for summer rainfall species. Young plants can be potted up or planted out into the garden during their second season, and flowers can be expected from the third season onwards.

Aristeas require protection when grown in very cold climates. Some of the broader-leaved members are prone to severe rust on the foliage (e.g. A.major). It needs to have a quick fire lit over it in late summer (just some leaves and small sticks will do) to stimulate it to flower. If grown in a pot it needs to be a terracotta one so it doesn't melt when the fire is lit.