Clay's Hibiscus (Red Kauai Rosemallow) – Hibiscus clayii

Overview

Clay's Hibiscus, or Red Kauai Rosemallow (Hibiscus clayii), is a critically endangered endemic species from Kauai, Hawaii. It is a small tree with striking red flowers.

Botanical Profile

Description

Small tree 10–20 feet tall. Leaves are oval, smooth. Flowers are 3–4 inches across, deep red, single, with a prominent staminal column. Blooms sporadically. One of the rarest hibiscus species.

Conservation

• Status: Critically endangered; fewer than 100 plants in wild.
• Zones: 10–11; frost-tender.
• Sun: Full sun to part shade.
• Soil: Well-drained, volcanic.
• Water: Moderate.

Notes

Propagation and cultivation in botanical gardens are vital for its survival. A treasure of Hawaiian flora.