Pandanus julianettii - Martelli
Common Name Karuka
Family Pandanaceae
USDA hardiness 10-12
Known Hazards None known
Habitats Not known
Range Australasia - New Guinea.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Tender Moist Soil Semi-shade Full sun

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Pandanus julianettii Karuka
Pandanus julianettii Karuka
Physical Characteristics
 icon of manicon of shrub
Pandanus julianettii is an evergreen Shrub growing to 4 m (13ft) by 3 m (9ft) at a fast rate.
It is hardy to zone (UK) 10. Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: acid and neutral soils and can grow in very acid and saline soils.
It can grow in semi-shade (light woodland) or no shade. It prefers moist soil. The plant can tolerates strong winds but not maritime exposure.

No synonyms are recorded for this name.

Edible Uses
Seeds[418 ]. The seeds are oily and contain a fair amount of protein[418 ]. Sometimes the inner leaves and the tips of the aerial roots are eaten cooked[317 ].
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.

None known


Other Uses
Other Uses A fibre obtained from the plant is used for making textiles[418 ].
Cultivation details
Management: Standard;  Regional Crop;  Staple Crop: Oil.

A plant of the humid tropics, where it is found at elevations from 1,700 - 2,900 metres[418 ]. Plants grow best in areas where the mean annual temperature is within the range 13 - 24?c, but can tolerate 6 - 30?c[418 ]. They may tolerate temperatures as low as 0?c for short periods and down to 3?c for prolonged periods[418 ]. They prefer a mean annual rainfall in the range 3,000 - 4,000mm, tolerating 2,500 - 4,000mm[418 ]. Succeeds in sunny positions and in light shade[418 ]. Prefers a well-drained, humus-rich, light to medium soil[418 ]. Prefers a pH in the range 4.5 - 5.5, but tolerates 3.5 - 5.6[418 ]. Plants can be harvested for their fibre the first time 6 - 8 years from planting, with an economical life of 20-40 years and with a total lifespan of up to 70 years[418 ]. Require 90-120 days from flowering to fruiting and have no obvious seasonality[418 ]. This species has potential for commercial use[317 ]. Branches do not have dormant buds and so will not resprout if cut back into the old wood[423 ]. A dioecious species, both male and female forms need to be grown if fruits and seed are required.
Seed - best pre-soaked for 24 hours prior to sowing[299 ].
Other Names
Found In
Papua New Guinea; Indonesia
Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status
IUCN Red List of Threatened Plants Status :
Related Plants


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Links / References
For a list of references used on this page please go here
A special thanks to Ken Fern for some of the information used on this page.
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Subject : Pandanus julianettii  

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