Hawaiian Names with Diacritics
- Indian tulip tree
- Pacific rosewood
- Portia tree
- Hibiscus populneus
- Thespesia macrophylla
Endangered Species Status
Plant Form / Growth Habit
Mature Size, Height (in feet)
- Tree, Medium, 30 to 50
- Tree, Large, Greater than 50
Mature Size, Width
Milo can over several decades have a copy spread of 30 to 40 feet at maturity. The oldest trees have a spread of nearly 70 feet. 
Long lived (Greater than 5 years)
- Provides Shade
- Specimen Plant
Additional Landscape Use Information
Milo is easy to grow and care for, although it can be considered messy since it drops numerous leaves and dry seed capsules year round. This is an excellent tree for coastal properties that constantly battle with wind and salt spray.
Source of Fragrance
- No Fragrance
Additional Fragrance Information
Milo wood has a nice spicy fragrance only when fresh, disappearing when carved into finished wood products.
Plant Produces Flowers
Additional Flower Color Information
Flower petals are yellow with maroon centers. The bright yellow flowers open early in the day, turning to a medium to dark orange later in the day.
- Year Round
Additional Blooming Period and Fruiting Information
Flowers last one day. Brown or grayish papery seed capsules form after flowering.
Additional Plant Texture Information
Milo leaves range from 2 to 12 inches long.
- Dark Green
- Light Green
- Medium Green
Additional Leaf Color Information
The leaves are shiny yellow to dark green.
Additional Pest & Disease Information
Milo does not appear to be bothered by many pests.
Foliar feed young milo trees once a month in early morning with a water soluble or an organic fertilizer (e.g. kelp or fish emulsion) at one-third to one-fourth the recommended strength. [David Eickhoff, Native Plants Hawaiʻi]
Milo is not a self-pruning tree. It recovers slowly from pruning, so best to be selective about which parts and the amount to prune at any one time.
Soil must be well drained
- Full sun
- Partial sun
Additional Lighting Information
Milo prefer full sun.
- Waterlogged Soil
- Brackish Water
- Salt Spray
Natural Zones (Elevation in feet, Rainfall in inches)
- Less than 150, 0 to 50 (Dry)
- 150 to 1000, 0 to 50 (Dry)
Additional Habitat Information
Milo is known to grow in protected coastal sites near streams exposed to tidal influence and not far inland from sea level to about 900 feet. Trees and shrubs can be found growing naturally at the high tide line above mangrove, but can tolerate an occasional brackish water tidal inundation.
Milo is apparently not as common as in the past due to over harvesting in some areas.
Milo is a member of the Mallow family or Malvaceae. There are eighteen species in the genus Thespesia but perhaps the best known and widely distributed one is the pantropic portia or milo (Thespesia populnea).
The generic name Thespesia is derived from the Greek thespesios, divine, referring to T. populnea, which was collected in Tahiti by Captain Cook's expedition in 1769 and was reported to be a sacred tree and planted around places of worship.
The specific epithet populnea, poplar-like, likely in reference to the leaves resembling some poplar (Populus spp.) tree species.
Milo means to twist, curl, or spin. This name is also used in the Marshall Islands and American Samoa. 
This is probably an indigenous tree. However, to date, there is no conclusive evidence to support milo as indigenous. [6,12,14] Even so, milo is also one of the canoe plants that the Polynesians brought with them to the islands, and certainly not invasive as its non-native cousin hau (Hibiscus tiliaceus), also brought in by the early settlers.
The fruits and seeds are salt tolerant and are distributed island to island by sea. The seeds will germinate even after a year in seawater. 
Even though the flowers and young leaves are reported to be mildly poisoness,  milo is one of the few plants that were listed as an emergency food during World War II in a manual called “Emergency Food Plants and Poisonous Plants of the Islands of the Pacific” by the War Department. It states that “the purpose of this manual is to aid the individual who becomes separated from his unit…so that this individual can live off the land.” It then briefly identifies the plant and how to prepare it. 
Early Hawaiian Use
The beautiful wood was prized by early Hawaiians, second only to kou, to make food bowls (ʻumeke milo), poi calabashes, platters (pā milo), and dishes because the wood gave no unpleasant taste to the food like some other native woods, such as koa. [1,3,5,10,14]
The bark was used as cordage. [3,9]
The fruits produce a yellowish green dye, medicine, oil, and gum. [3,9]
The yellow flowers were used by lei makers. 
Early Hawaiians found young milo leaves, flowers, and flower buds to be edible. [5,9,10,15]
Milo was considered a sacred tree and the use prohibited by commoners.  The house of King Kamehameha I in Waikīkī was surrounded by milo. 
Today, the seeds are sometimes strung for permanent lei. 
The dark heartwood is moderately heavy, durable, and easy to work with. The wood has low shrinkage rate when drying  and has been fashioned into beautiful items such as carvings, bowls and platters. [11,12,13] Milo is also used in boat building and in cabinet making. 
In Hawaiʻi and elsewhere in the tropics, milo is sometimes used as street or park trees, or as a living fence. 
Modern Uses of Thespecia Outside of Hawaiʻi:
In the West Indies, where cotton is an important crop, this naturalized species is eradicated because it is a host of the cotton stainer (Dysdercus sp.), a red insect that stains fibers of growing cotton. 
Thespecia garckeana from East Africa has edible fruits.
The fibers of Thespecia lampas from Africa to the Philippines is like sunn or sunn hemp (Crotalaria juncea), which is more durable than jute. 
 "Arts and Crafts of Hawaii" by Te Rangi Hiroa (Sir Peter H. Buck), pages 37-38.
 "Hawaiʻi's Seeds and Seed Leis--An Indentification Guide" by Laurie Shimizu Ide, pages 96-97.
 "Plants in Hawaiian Culture" by Beatrice H. Krauss, pages 23, 66.
 "Plants of the Canoe People" by W. Arthur Whistler, page 210.
 "Plants of Old Hawaii" by Lois Lucas, page 56.
 Dr. David Burney, NTBG (pers. comm.)
 "Nā Lei Makamae--The Treasured Lei" by Marie A. McDonald & Paul R. Weissich, page 92.
 “Emergency Food Plants and Poisonous Plants of the Islands of the Pacific” by the War Department (April 15, 1943), page 70.
 "In Gardens of Hawaii" by Marie C. Neal, pages 563-564.
 "Resource Units in Hawaiian Culture" by Donald D. Kilolani Mitchell, pages 120, 130-131.
 "Hawai'i's Plants and Animals--Biological Sketches of Hawaii Volcanoes National Park" by Charles P. Stone & Linda W. Pratt, page 63.
 "Back to the Future in Caves of Kauaʻi--A Scientist's Adventures in the Dark" by David A. Burney, page 128.
 "Contemporary Woodworkers" by Tiffany DeEtte Shafto & Lynda McDaniel, page 188.
 "Paradisus: Hawaiian Plant Watercolors" by Geraldine King Tam and David J. Mabberley, page 40.
 "Common Forest Trees of Hawaii (Native and Introduced)" by Elbert L. Little Jr. and Roger G. Skolmen, pages 222-223.
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Other Nursery Profiles for Thespesia populnea