Red Rosemallow

(Hibiscus kokio)

Red Rosemallow (Hibiscus kokio)

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Estimated Native Range
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Summary

Hibiscus kokio, commonly known as Red Rosemallow, is an evergreen shrub endemic to the Hawaiian Islands, where it thrives in the understory of dry to mesic forests and occasionally in shrublands at lower elevations. It typically grows to a height of 5-8 feet (1.5-2.4 meters) and a width of 6-9 feet (1.8-2.7 meters), with a bushy, rounded form. The Red Rosemallow is notable for its vibrant, showy red flowers that bloom throughout the year, adding a splash of color to the garden. The flowers are hibiscus-like in form, with five petals and prominent staminal columns.

This plant is valued for its continuous flowering habit and the tropical ambiance it brings to landscapes. It is often used in residential gardens, botanical gardens, and as an ornamental feature in public spaces. Red Rosemallow is relatively low-maintenance, requiring minimal water once established, making it suitable for xeriscaping. It prefers well-draining soils and can tolerate a range of soil types, from clay to loam. While it thrives in full sun, it can also do well in part shade, which mimics its natural understory habitat. There are no major disease problems, but it may be susceptible to pests such as aphids and whiteflies. It is not known to be invasive and does not have aggressive roots, making it a safe choice for planting near structures.CC BY-SA 4.0

Plant Description

  • Plant Type: Tree, Shrub
  • Height: 5-7.5 feet
  • Width: 6-9 feet
  • Growth Rate: Moderate
  • Flower Color: Red
  • Flowering Season: Winter, Spring, Summer, Fall
  • Leaf Retention: Evergreen

Growth Requirements

  • Sun: Full Sun, Part Shade
  • Water: Medium, Low
  • Drainage: Medium

Common Uses

Bee Garden, Bird Garden, Butterfly Garden, Hummingbird Garden, Low Maintenance, Showy Flowers

Natural Habitat

Dry to mesic forests and occasionally in shrublands at lower elevations

Other Names

Common Names: Koki’O ’ula’ula, Koki`O Ula

Scientific Names: , Hibiscus kokio, Hibiscus kokio var. pukoonis,

GBIF Accepted Name: Hibiscus kokio Hillebr. ex Wawra