Wurmbea marginata is well suited to deep containers, and prefers full sun. Corms can be planted 30-50 mm deep. Use a well-drained medium of sand and compost or finely milled bark. Water the plants heavily once per week. Corms should remain undisturbed for at least 3 years, after which the plants should be repotted.

Seeds are sown in autumn. Sow seeds in deep trays or raised beds. Fill trays or beds with a well-drained medium of equal parts of river sand and finely sifted compost. Spread seeds evenly over the surface of the medium and cover with a thin layer of river sand. Use a fine spray watering can to water seedlings twice a week. Seedlings should remain undisturbed for two years, and then be lifted and planted into containers at the beginning of their third growing season.