Erica triflora is very similar to the much sought after Erica baccans, but is not as easy to grow. Plants grow well enough in pots, but they are less hardy in the garden. Experience at Kirstenbosch has shown that the species is best planted in a cooler spot or where it is partially shaded. It is also advisable to plant it close together with other species of Erica or fynbos companion plants such as proteas, pincushions, buchus, brunias and restios.

Plant this Erica in a medium-sized container in a suitable, well-drained growing medium. A fynbos planting medium is made up of a combination of equal parts composted pine bark or pine needles and river sand. A little (20%) loam may also be added. It is a tall-growing species, so regular pruning is recommended to keep the plants well branched and compact. Plants that are pruned are more presentable, last longer and produce more flowers.

Erica plants are adapted to living in poor soils. Nevertheless, they should be regularly fed with low concentrations of diluted organic liquid or small amounts of organic pellet fertilizers.

It is propagated vegetatively by rooting fresh semi-hardwood tip or heel cuttings. Cuttings are rooted in multi-trays on heated benches under mist spray. Cuttings are rooted in autumn or spring in a rooting medium of equal parts bark and polystyrene chips. A semi-hardwood rooting hormone is used to aid the rooting process.

This species grows easily from seed when subjected to smoke treatment and sown in well-drained, acidic, sandy soil. Seed is normally sown from late summer into autumn, i.e. March to May.