Thai Botanic
Thespesia populnea, portia tree, grown root-balled for export in Thailand

Thespesia populnea

Portia tree, Indian tulip tree · Malvaceae · Evergreen tree

A coastal specialist. Glossy heart-shaped leaves, yellow hibiscus-like flowers ageing to maroon, and genuine tolerance of salt spray, saline soil and onshore wind. The tree to specify on a waterfront where ordinary stock burns.

Specification

Mature height6–12 m
Crown spread5–10 m [to confirm]
Calliper range supplied10–30 cm, measured 1 m above soil level [to confirm]
Root-ball diameter60–120 cm [to confirm]
Growth rateModerate
HabitEvergreen
FloweringYellow cupped flowers with a dark centre, ageing to maroon; near year-round
Minimum order quantity[to confirm]

Landscape use

Waterfront and marina planting, beachfront resorts, coastal roads, and windbreaks on exposed shorelines. Its scale suits promenades and courtyards where a larger canopy tree would dominate.

Its value is specifically coastal, and that is where it earns its place — holding form and foliage in salt spray and onshore wind that few other flowering trees will take.

Site tolerance

DroughtModerate to high
SalinityVery high — salt spray, saline soil and brackish groundwater
WindVery high — holds form in onshore wind
SoilSandy and coastal soils; tolerates poor drainage better than most
HeatHigh
USDA zone10–12

Export notes

Supplied root-balled and wrapped. Evergreen, so ships with foliage and is normally crown-reduced before loading. Phytosanitary certification accompanies every shipment. See export and compliance.


For available sizes and current stock in this species, get in touch.