Coleonema calycinum can be used as an accent plant, in groups to form a hedge, as a pot plant on the stoep / patio, or planted with fynbos species such as restios, ericas, pelargoniums, proteas, aloes and herbaceous perennials such as Phylica, Felicia and Geraniums and Pelargoniums to create an interesting fynbos garden.

This species requires full sun and will tolerate some semi-shade. It requires well-drained soil, compost and a well-balanced fertilizer (3:2:1). Plant out in groups of three or five with enough space to grow. Planting is best done during autumn, winter and spring. To retain soil moisture and keep weeds to a minimum, add a layer of mulch. They require good watering in winter and moderate watering in summer. Do not allow plants to dry out, and once established, they will survive periods of drought.

Coleonema calycinum can be propagated by sowing seed and by taking cuttings.

Fresh seed is collected from the previous year's flowers and stored upon ripening. The optimum time for sowing is during autumn. Clean seeds and sow on a prepared medium of sand and compost in equal parts in a seed tray. Cover seeds with a thin layer of bark and water. Place seed trays in a covered area with good light and ventilation. Keep seed trays damp and germination will take place within one to two months. Seedlings are pricked out when four true leaves have developed. The growing tips of seedlings are pinched out to encourage bushy growth. Feed buchus regularly with a balanced nutrient. The yellowing of leaves can be treated with an application of iron chelate.

Cuttings have the advantage of producing a larger flowering plant quicker than seedlings. Tip cuttings, 50-70 mm, are taken from the current year's growth. Prepare cuttings by making a clean cut below the node and remove a third of the foliage. The best time to process cuttings is during winter and spring. Dip the base of the cuttings in a rooting hormone. Firmly place the cuttings in a medium of 50 % bark and 50 % polystyrene. Ideally these cuttings should now be placed in an well-aerated propagation unit with a bottom heat of 24° C. Ideally, rooting occurs in 9-11 weeks. Carefully pot the rooted cuttings, using a well-drained, humus-rich, fynbos potting medium (2 parts leaf mould, 1 part coarse sand). Plants will be ready for planting in 7-8 months. Feed regularly with a well-balanced nutrient.

Phytophtera cinnamonnii, a soil-borne fungus, attacks the roots of most fynbos species. It prevents the uptake of water causing plants to die. The fungus is most active when the soil temperature is high, especially during summer. Remove infected plants and use soil mulch to reduce the soil temperature. Treat plants with a special fungicide prior to planting out. This is a precautionary measure to control the fungus and to protect adjacent plants.