Codonorhiza and Lapeirousia grow well in full sun and are best maintained in deep containers where they can enjoy a sunny spot for as much of the day as possible.

Plant the corms in autumn, about 20 mm deep, in a well-draining, sandy medium with 50 mm of finely sifted compost at the bottom of the container. Give the plants a thorough watering once or twice a week during spring and the winter growing season, but during the summer dormant period the plants should remain completely dry. Corms are known to go dormant for one or more growing seasons despite sufficient moisture and therefore rarely produce offsets for propagation.

Sow seeds of Codonorhiza corymbosa in autumn. The very hard seeds have a long dormancy period and therefore a low percentage of fresh seeds germinate in the first winter season, but germination improves by the second year and is usually most rewarding in the third. Once germinated the seedlings grow fast and flower usually in the second or third year.

There are no serious pests or diseases associated with Codonorhiza corymbosa , but check regularly for any aphids on the flowers and treat with soapy water or an aphicide.