Grow Erica peziza in soil that is well drained, with an acidic pH of 5.5–6.5. It is well suited to rockeries, rocky slopes, retaining walls and raised beds. It is also suitable for containers. Water well, but carefully; it needs regular watering but it does not like to be permanently wet as it will get sick and die in waterlogged, soggy soil. It needs a sunny situation, where there is free circulation of air through its branches; it will not thrive in a humid situation. Once planted, leave its roots as undisturbed as possible. Mulch regularly with well-rotted compost, pine needles or bark chips, and feed where necessary with a diluted, organic or a slow-release fertilizer, such as 3:1:5 but take care not to overfertilize. Prune lightly to encourage branching.

Erica peziza can be propagated from cuttings and seed. Sow seed in late summer or autumn. Use a well-drained, slightly acidic, sandy medium such as equal parts of river sand and decomposed pine bark. Sow the seeds onto the surface of the sand. Keep lightly shaded and moist. Seed germinates in about six weeks. Pot them up when they are at least 10 mm tall and grow them on for at least another twelve months before they can be planted into the garden.

Take semi-hardwood heel cuttings in late summer to autumn or spring. Treat with a rooting hormone and place in a well-drained, well-aerated rooting medium in a mist unit with bottom heat of ± 24 °C. Pot the rooted cuttings in a well-drained, acidic soil medium and harden off in light shade for a month or two.