Hydriastele dransfieldii
Ombrush
Country Of Origin: Papua New Guinea
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About Hydriastele dransfieldii
This is a solitary, mid-storey palm endemic to the Biak Islands (Biak, Supiori, Numfor) off NW New Guinea, where it grows on thin soils over limestone from sea level to ~300 m. It’s moderately slender with a distinct crownshaft and 6–10 pinnate leaves. The foliage is also distinctive: each frond usually carries three broad, multi-fold leaflets on each side (intermixed with a few single-fold segments) whose tips look neatly “cut off”. Inflorescences are infrafoliar and the fruits ripen yellow to red. The species name honors palm taxonomist John Dransfield.
| Climate Zone | 10b |
| Min Temp (F/C) | 35 to 40 F / 2 to 4 C |
| Leaf Type | Pinnate |
| Height | 39 Ft / 12 M |
| Growth Rate | Slow |
| Conservation Status |
Least Concern
|
| Crownshaft | Yes |
| Habit | Solitary |
| Soil pH | 5.0-5.9 (Acidic) |
| Soil Type | Organic / Humus-rich |
Cultivation Tips
Give it bright filtered light to morning sun when young; in humid tropics it can take more sun as it hardens, but partial shade best matches its natural mid-canopy habit. Use a very free-draining mix and avoid waterlogging; tolerance of limestone/alkaline substrates is a plus (it often grows in cracks of coastal limestone in habitat). Keep evenly moist in heat with high humidity, easing off water in cool spells; protect from drying winds. Feed lightly with a balanced palm fertilizer during the warm season and prune only fully spent fronds.
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