Erica amoena requires a well-ventilated, sunny location with well-drained, sandy, acidic soil to thrive. Once or twice a year, feed with well-rotted compost, spread as a mulch. Slow-release fertilizer in diluted or low amounts can also be employed. When you pinch the tips of immature plants, you get a plant with more branches, that develops  a compact habit and produces more flowers. It can also be used in containers, if well hydrated.

Erica amoena can be propagated by seed or cuttings. Seeds can be sown in autumn (April to May). Before sowing, treat the seeds with Instant Smoke Plus Seed Primer, which is a smoke-water solution or expose the seed trays to the smoke of burning fynbos plants (in a tent), to improve germination. A well-drained, acidic sowing medium is a must. Because the seeds are so fine, they need only a light covering of clean sand, or the seeds can be mixed with dry sand and the layer of seed and sand spread in a thin layer on top of the sowing medium. Water with a fine rose to avoid displacing the seeds, and the trays must be kept damp but not wet and out of direct sun in a warm, but not hot area. Germination takes 1 to 2 months, while transplanting the seedlings is necessary when they are about 10 mm high.

Take semi-hardwood tip or heel cuttings in late summer to autumn, or in the spring. Apply rooting hormone and place in a sterile rooting medium that is well-drained, well-aerated and well-ventilated. To produce 50–70 mm long cuttings, a root-stimulating hormone such as auxin powder or IBA is utilized. Before propagation, visible flower portions are removed and cuttings are soaked in a solution of seaweed extract and irrigated. The cuttings are placed in a fynbos-friendly substrate (such as a mixture of fine-milled bark and perlite). By first forming a thin hole with a sterile wire and then placing the cutting in the hole, the excess powder is permitted to stay on the cutting, where it will be placed in the wet medium. The cuttings tray is labeled before being placed in the propagation mist house.

The mist house is heated and maintained at a warm temperature of 22–25°C; it sprays water every 15 minutes for 5 seconds, to keep the rooting medium moist, the leaves cool and moist. The bench is also heated and maintained at a warm temperature of 22–25°C. After 2–3 months, the cuttings are hardened off in a shady area for a week before being potted into 2 kg nursery bags, in a fynbos soil mix. They are watered on a regular basis and given organic fertilizers once a month to promote growth before being planted in the garden when they are ready.

Erica amoena requires a sunny location with good air circulation in sandy and acidic soil. It is perfect for fynbos gardens, particularly those on sandy flats. Those lucky enough to have a stream or seepage area in their garden should try this Erica. It prefers warm, sunny, well ventilated positions and must be given regular doses of water in summer. Companion plants may include other proteas Mimetes, ericas, buchus, brunias, and restios.