Syncolostemon transvaalensis requires a sunny or semi-shaded position in nutrient-rich, well-drained, compost-enriched soil. It is well suited to the rockery and will do equally well in the mixed border. It can be grown as a solitary specimen, or in groups and is also effective when massed, planted roughly 60 cm apart. It is hardy to Highveld conditions (-5C / 23F / zone 9) but young plants should be protected from frost. It also does very well in the winter-rainfall Western Cape where it requires at least twice weekly watering during the dry summers. Once established, it is a long-lived perennial and can remain undisturbed for a very long time. For best results, Syncolostemon transvaalensis should be pruned heavily in mid-winter. This will rejuvenate the plants, cause a flush of healthy new growth in spring and enhance flowering. An annual dressing of compost in late winter, and keeping them mulched will benefit the plants greatly.

Propagation is by cuttings or seed.

Syncolostemon transvaalensis is readily propagated from softwood or herbaceous cuttings, best taken in spring or early summer. These should be about 50-100 mm long, with the lower leaves removed, planted in sand, or peat/finely milled bark and polystyrene mixture and best placed in a mist bed and kept moist. Rooting should be rapid (3 weeks) and after an approx. 2 week weaning period, the newly rooted plants should be grown on in light shade.

Seed can be sown in spring or summer, in a shallow standard seed tray in a standard well-drained seedling mix. Cover with a thin layer of sand (1-2 mm) and keep moist. Seed should germinate in 3-4 weeks. The seedlings can be planted out in individual bags as soon as they are large enough to handle.