Hibiscus mutabilis Cotton Rose

Cotton roses tend to be shrubby or treelike in zones 9 and 10, though they behave more like perennials further north. Flowers can be double or single and are 4–6 in (10–15 cm) in diameter; they open white or pink and change to deep red by evening. The ‘Rubra’ variety has red flowers. Single blooming flowers are generally cup-shaped. Bloom season usually lasts from summer through fall. Propagation by cuttings root easiest in early spring, but cuttings can be taken at almost any time. When it does not freeze, the Cotton rose can reach heights of 12–15 ft (3.7–4.6 m) with a woody trunk; however, a much bushier plant 5–6 ft (1.5–1.8 m) high is more typical and provides more flowering. These plants have a very fast growth rate.  It grows well in full sun or partial shade and prefers rich, well-drained soil.