Hibiscus calyphyllus is a dense, perennial, rounded shrub; up to 3 m high; the leaves are large, up to 50 mm in diameter, light green, soft and velvety; the flowers are lemon-yellow, large, up to 100 mm in diameter, with a deep red to blackish centre; the fruit is a papery capsule that splits open to reveal hairy to hairless seeds. It is fairly fast growing and will flower repeatedly, the flowers lasting for a reasonable amount of time. Flowering time: all year round, but mainly from January to April.

Hibiscus calyphyllus can be planted in groups as an informal border, using In this case plant 3-5 plants together, or one to two plants can be used as a focus point in a small garden. It can also be used as a container plant providing that a large container is used. It should be planted in full sun but can stand light shade under a tree or on a patio. It needs a moderate amount of water on a regular basis.

Although Hibiscus calyphyllus prefers moist, hot summers, it is semi-frost resistant. In a cold, frosty garden, however, a warmer, sheltered spot in the garden is preferable and will produce better results. It is a relatively fast-growing plant, providing that it is planted in fertile, rich and well-drained soil. Enrich the soil with a considerable amount of compost and organic material. The soil pH should range from mildly acidic (6.1 to 6.5) to neutral (6.6 to 7.5). Prune the shrub towards the end of summer.

This plant can be propagated by way of herbaceous stem cuttings or from seed, which should be sown directly after the last cold period. Allow the seedheads to dry on the plants, then remove them and collect the seed