Arctostaphylos rainbowensis, commonly known as Rainbow Manzanita, is an evergreen shrub or small tree endemic to chaparral and coastal sage scrub habitats in northern San Diego and southern Riverside Counties in California. It typically grows up to 13 feet in height and is noted for its burl at the base, which allows it to resprout after fire. The smooth, reddish-brown bark and the oval, waxy, hairless leaves are characteristic features. During winter to early spring, it produces clusters of white urn-shaped flowers that are attractive to pollinators. The fruit matures to a dark purple-brown and is consumed by local wildlife.

Rainbow Manzanita is valued for its ornamental qualities, including its striking bark and attractive flowers. It is used in native plant gardens, for habitat restoration, and as an accent plant in drought-tolerant landscapes. It requires well-drained soils, minimal water once established, and thrives in full sun to part shade. While it is relatively low-maintenance, it can be susceptible to fungal diseases if conditions are too wet. Due to its limited range and the threat of habitat development, it is considered a rare and threatened species. Gardeners should ensure they source plants from reputable nurseries that do not collect from wild populations.CC BY-SA 4.0