The pearl erica is easy to grow and can be quite long-lived, lasting for about eight to ten years before it becomes old and woody or dies. Regular pruning is recommended for producing good quality plants that flower profusely, and this will also extend the life of the plant. It needs a well-drained, acidic, sandy soil in a sunny position. If not ventilated properly, this species can be affected by downy mildew, which can easily be controlled by early treatment with fungicides dedicated to controlling this condition and can be avoided by watering in the early part of the day rather than in the evening or at night.

Erica margaritacea is easy to grow from seed and cuttings. Sow seeds in autumn in a sandy, well-drained soil mixture. Use a smoke pre-treatment to optimize germination. Seedlings appear after 2 to 3 weeks and should be nurtured until they are about 10 mm tall, then transplant them into individual containers. Pinch out the terminal shoots to promote the bushy growth of the plant.

Take cuttings from actively growing shoots (preferably as heel cuttings), in autumn or spring to early summer. Place them in rooting trays in a finely milled bark mix in special propagation units with bottom heat benches and overhead misters. Rooting takes place in ± 3 weeks and the same care must be taken when transplanting the cuttings into individual containers.