Arctostaphylos glandulosa subsp. crassifolia, commonly known as Del Mar manzanita, is an evergreen shrub endemic to coastal sage scrub and chaparral habitats in San Diego County, California, and northwestern Baja California, Mexico. It thrives on sandstone coastal terraces and bluffs, often in nutrient-poor soils and areas with hardpan conditions. This species typically reaches 3 to 4 feet in height and has a rounded, spreading form. Del Mar manzanita is notable for its striking appearance, with smooth red bark and dense foliage of dark green leaves. From December to February, it produces showy clusters of white to pink urn-shaped flowers, followed by small, apple-like fruits that are a food source for local wildlife.

Del Mar manzanita is valued in cultivation for its drought tolerance, attractive bark and flowers, and its ability to thrive in poor soils, making it an excellent choice for xeriscaping and native plant gardens. It is also used for habitat restoration projects. While it requires little maintenance once established, it does best in full sun to partial shade and requires well-drained soils. Overwatering or poor drainage can lead to root rot. As an endangered species, it is not commonly available in the nursery trade, but when it is, it’s important to source from reputable growers to avoid impacting wild populations.CC BY-SA 4.0