Native White Rosemallow (Hibiscus arnottianus): Hawaiian Endemic

Overview

Hibiscus arnottianus, known as Native White Rosemallow, is a species endemic to Hawaii. It is a small tree or large shrub with fragrant white flowers.

Botanical Details

• Family: Malvaceae
• Genus: Hibiscus
• Species: arnottianus

Description

This evergreen shrub or small tree grows 10–20 feet in its native habitat, but can be maintained smaller in cultivation. The leaves are smooth, green, and ovate. The flowers are 3–4 inches, pure white with a prominent column of stamens, and are sweetly fragrant, especially in the evening. Blooms year-round in tropical climates.

Conservation and Culture

As a Hawaiian endemic, it has conservation significance. In cultivation, it requires frost-free conditions, well-drained soil, and moderate water. Can be grown in large containers. Attracts native pollinators.