Hawaiian White Hibiscus, Native White Rose Mallow, Pamakani, Koki'o Ke'oke'o, Hau Hele, Koki'o Kea, O'ahu White Hibiscus, Hibiscus immaculatus, Hibiscus punaluuensis
Hibiscus arnottianus (Hawaiian White Hibiscus) is an evergreen shrub or small tree of open and airy to compact habit. Blooming almost continuously, it boasts slightly fragrant, pinwheel shaped, white flowers, up to 4 in. across (10 cm), with a conspicuous, protruding, pink to red staminal column. Borne at the tips of the branches, the showy blossoms stand out against the evergreen foliage of oval, smooth leaves, 4-6 in. long (10-15 cm), often adorned with red veins. Hawaiian White Hibiscus is a Hawaiian endemic plant that is native to the moist to wet forests of the mountains of Moloka’i and O’ahu. It has three uniquely different subspecies, and one of them (the Molokaʻi subspecies immaculatus) is endangered and extremely rare in its native habitat. Hibiscus arnottianus and H. waimeae, are the only species of hibiscuses in the world known to have fragrant flowers. Hawaiian White Hibiscus is a beautiful landscape accent with dramatic year-round blooms.
| Hardiness |
9 - 11 |
|---|---|
| Climate Zones | 23, 24, H1, H2 |
| Plant Type | Shrubs, Trees |
| Plant Family | Malvaceae |
| Genus | Hibiscus |
| Common names | Hibiscus |
| Exposure | Full Sun, Partial Sun |
| Season of Interest | Spring (Early, Mid, Late), Summer (Early, Mid, Late), Fall, Winter |
| Height | 15' - 30' (4.6m - 9.1m) |
| Spread | 20' - 25' (6.1m - 7.6m) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Chalk, Clay, Loam, Sand |
| Soil pH | Acid, Neutral |
| Soil Drainage | Moist but Well-Drained, Well-Drained |
| Characteristics | Fragrant, Showy, Evergreen |
| Native Plants | United States |
| Tolerance | Drought |
| Garden Uses | Hedges And Screens, Patio And Containers |
| Garden Styles | Informal and Cottage, Mediterranean Garden |
| Hardiness |
9 - 11 |
|---|---|
| Climate Zones | 23, 24, H1, H2 |
| Plant Type | Shrubs, Trees |
| Plant Family | Malvaceae |
| Genus | Hibiscus |
| Common names | Hibiscus |
| Exposure | Full Sun, Partial Sun |
| Season of Interest | Spring (Early, Mid, Late), Summer (Early, Mid, Late), Fall, Winter |
| Height | 15' - 30' (4.6m - 9.1m) |
| Spread | 20' - 25' (6.1m - 7.6m) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Chalk, Clay, Loam, Sand |
| Soil pH | Acid, Neutral |
| Soil Drainage | Moist but Well-Drained, Well-Drained |
| Characteristics | Fragrant, Showy, Evergreen |
| Native Plants | United States |
| Tolerance | Drought |
| Garden Uses | Hedges And Screens, Patio And Containers |
| Garden Styles | Informal and Cottage, Mediterranean Garden |
How many Hibiscus arnottianus (Hawaiian White Hibiscus) do I need for my garden?
| Plant | Quantity | |
|---|---|---|
| Hibiscus arnottianus (Hawaiian White Hibiscus) | N/A | Buy Plants |
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Create a membership account to save your garden designs and to view them on any device.
Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
Join now and start creating your dream garden!
