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Alstonia angustiloba

In Singapore: Common Pulai, Pulai, 黑板树, 橡皮树 (Native to Singapore, Least Concern)

9 NParks heritage trees in Singapore: Found in Singapore Botanic Gardens, National Orchid Garden; Found in Pulau Ubin, Jalan Durian after Pekakak Hut, former Kampong Melayu; Found in; Found in; Found in; Found in; Found in Singapore Botanic Gardens, Burkill Drive Way; Found in Royal Road end, on slope behind House No. 7, (MSS Alexandra Park); Found in

Alstonia angustiloba
Photo: Alexey Komarov, CC BY 3.0

Alstonia angustiloba is a large forest tree in the dogbane family, reaching up to 40 m tall, native to Thailand, Peninsular Malaysia, Singapore, Sumatra and Java. It is a wild rainforest species rather than a garden or houseplant, so the key to growing it is a warm, humid, wet tropical climate with space for a very large tree.

Family
Apocynaceae (Dogbane family)
Grows as
Tree
Light
Full sun, Part shade
Water
Keep soil evenly moist while young and water regularly in dry spells, as it grows in wet tropical forest.
Soil
Well-drained, fertile, moisture-retentive soil.
Temperature
22-32 °C; protect below 15 °C
How easy
Hard
Native range
Pen. Thailand to W. Malesia
Climate
wet tropical

About

Alstonia angustiloba is a tree in the dogbane family Apocynaceae.

Where it grows

Alstonia angustiloba is native to Thailand, Peninsular Malaysia, Singapore, Sumatra and Java. It is found in a variety of habitats from sea level to 200 metres (700 ft) altitude.

Other Alstonia plants

Alstonia angustifolia · Alstonia · Alstonia constricta · Deviltree · Alstonia pneumatophora · Indian devil tree · Hard Milkwood · Alstonia

[Contains information from Leaf Area Index (LAI) and Heritage Trees from data.gov.sg (National Parks Board), made available under the terms of the Singapore Open Data Licence version 1.0]

Text excerpted from the Wikipedia article Alstonia angustiloba by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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