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Hard milkwood

Alstonia muelleriana

Also called Hairy milky pine, Yellowwood

Hard milkwood
Photo: Steve Fitzgerald, CC BY-SA 4.0

Hard milkwood is an evergreen rainforest tree from northeast Queensland and southern New Guinea, growing 15 to 25 m tall. It is a timber and landscape tree rather than a common garden plant, and it thrives in wet tropical conditions.

Family
Apocynaceae (Dogbane family)
Grows as
Tree
Light
Part shade, Full sun
Water
Keep the soil evenly moist while young, then water during dry spells once established.
Soil
Well-drained, fertile soil; tolerates a range of forest soils.
Temperature
18–30 °C; protect from frost, as it is a wet tropical species.
How easy
Moderate
Native range
S. New Guinea to NE. Queensland
Climate
wet tropical

About

Alstonia muelleriana is a tree in the dogbane family Apocynaceae which is native to southern Papua New Guinea and northeastern Queensland.

Where it grows

The range of the hard milkwood is restricted to a small part of northeastern Queensland, from near Rossville to the Paluma Range N.P. north of Townsville, and also the southwestern parts of Papua New Guinea.

Other Alstonia plants

Milkwood · Alstonia angustifolia · Alstonia angustiloba · Alstonia annamensis · Alstonia beatricis · Alstonia · Alstonia breviloba · Alstonia · Alstonia constricta · Alstonia costata · Alstonia iwahigensis · Deviltree

Text excerpted from the Wikipedia article Alstonia muelleriana 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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