Hibiscus mutabilis

Cotton roses are semi-deciduous with palmately lobed leaves. They tend to be large shrubs or treelike in zones 9 and 10, though they have a more modest shrub-like appearance more north. Stems and petioles feature dense stellate and glandular hairs. 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. 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. The flowers are attractive to pollinators, including the specialized bee Ptilothrix bombiformis.

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