Hibiscus arnottianus, commonly known as White Rosemallow, is an evergreen shrub or small tree native to the moist and mesic forests of the Hawaiian Islands. It typically grows to a height and width of 15-30 feet (5-9 meters), featuring a rounded canopy with glossy, deep green leaves. The White Rosemallow is renowned for its large, fragrant, white flowers with a blush of pink, which bloom throughout the year, peaking in the spring. The flowers are particularly showy, with prominent staminal columns that add to their ornamental value.

White Rosemallow is valued for its beautiful, sweet-scented flowers and its ability to attract pollinators such as butterflies and bees. It is used in tropical and subtropical landscapes for naturalistic plantings, as a specimen plant, or in mixed shrub borders. While it prefers full sun to part shade, Hibiscus arnottianus is adaptable to a range of light conditions. It requires well-draining soil and can tolerate both low and medium water conditions once established. This species is relatively low-maintenance but can be susceptible to pests like aphids and whiteflies. It is not known to be invasive outside its native range and is considered a valuable addition to gardens for its year-round flowering habit.CC BY-SA 4.0