All ericas can be propagated in two ways, from seed or by means of cutting.

Erica seeds are fine, almost like powder, and it therefore does not require covering when sown. When sowing seeds, ensure even distribution and do not sow the seeds too thickly as this may result in damping off after germination. One can mix the seeds with fine, dry sand and spread a thin layer evenly over the surface of the sowing medium, this helps spread the seeds more evenly. Also take care to water very carefully with a fine spray to avoid displacing the seeds with heavy drops. The most suitable time for sowing is in autumn (April and May). Erica calcareophila, much like most of the plants in the Erica genus, prefers an acidic environment and requires sandy, well-drained soil with a pH of 4-5.5. After the seeds have been sown, it will take up to a month or two to germinate.

Propagating ericas vegetatively, from cuttings, is difficult. The majority of Kirstenbosch's vegetative propagation was carried out under glass using a mist unit, and the best results were obtained in summer, from November to February. Before starting any vegetative propagation on ericas make sure the mother plant is healthy and free from disease. Use semi-hardwood cuttings that are about 1.25 cm in length; heel cuttings work best because they root more easily than nodal cuttings. When no rooting hormone is applied, the cuttings could take up to 3 months to root; however, this time could be shortened with the introduction of a rooting hormone.

The most suitable rooting medium for ericas is a mixture of imported peat and clean sharp sand in equal proportions. Make use of bottom heating and keep the temperature at approximately 24°C. The shading should be light so that the plants may enjoy the maximum light possible as heavy shade will result in the plants being drawn out and tender, which will lead to heavy losses after potting. When the cuttings have rooted, pot them in 1 litre plastic bags or pots in a mixture of 3 parts sand: 2 parts coarse leaf mould: 1 part peat. Keep the cuttings warm.

Erica calcareophila is best suited to frost-free fynbos gardens or Mediterranean-climate gardens with rain in winter and a dry summer. Give them a sunny, well-ventilated position in well-drained soil and feed with well-rotted compost applied as a mulch. This species can grow in acidic soil suitable for fynbos, but it will also grow well in alkaline soil. It is ideal for rock gardens, containers or can be grown in open beds. When planting into the garden, make a 60 x 60 cm deep trench. Add one cup of bone meal and thoroughly combine two-thirds of the topsoil with one-third of the well-rotted acid compost. When it comes to feeding and watering in locations with summer rainfall, water deeply throughout the dry winter months. To keep the soil moist, safeguard the roots, and nourish the plant, mulch with acid compost or pine needles.

Ericas are surface rooting plants that have a system of fine roots and a mass of fine root hairs that are responsible for absorbing the moisture and this type of root system needs to be protected as it is vulnerable. Therefore, once the cuttings have been rooted and are ready to be planted in the garden, care must be taken both in how they are handled and that the bed in which they are planted contains suitable companion plants, which share the same general requirements and help in securing the ericas. Such plants include but are not limited to: Diosma haelkraalensis, Acmadenia mundiana, Protea obtusifolia, Leucadendron spissifolium, Leucadendron salignum, Kniphofia uvaria, Mimetes cucullatus, Spatalla curvifolia etc.