Pinanga riparia

Country Of Origin: Sumatra (Indonesia)

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map image

About Pinanga riparia

This is a clustering palm with thin, cane-like trunks that grow in dense groups.  It features a prominent green crownshaft that is often flushed with reddish tones and provides a smooth, tubular contrast to the fibrous stem bases.  The palm’s crown consists of gracefully arching, pinnate leaves with broad, somewhat irregular leaflets that are glossy green above and lighter beneath; the petioles are short, smooth, and subtly curved.  Inflorescences are interfoliar and branched, emerging from beneath the crownshaft and bearing small yellow to cream-colored flowers arranged along short rachillae.  Fruits are oval to round, ripening from green to vibrant red, and often appear in colorful clusters that contrast beautifully against the foliage.  This species is exceptionally rare in cultivation and is mostly grown by advanced collectors with controlled tropical or highland conditions.

Climate Zone 10b
Min Temp (F/C) 35 to 40 F / 2 to 4 C
Leaf Type Pinnate
Height 16 Ft / 5 M
Growth Rate Slow to Moderate
Conservation Status
Not Evaluated
Crownshaft Yes
Habit Clustering
Soil pH 5.0-5.9 (Acidic)
Soil Type Organic / Humus-rich

Cultivation Tips

This palm prefers a protected garden setting or tropical greenhouse where humidity is consistently high and the soil remains evenly moist.  Young plants grow best in deep to partial shade, but mature specimens can gradually adjust to brighter filtered light under humid conditions.  Plant in rich, organic soil that retains moisture without becoming soggy—ideal mixes include fine bark, peat, and pumice or perlite to ensure airflow.  Regular watering is essential, as the roots should never dry out; misting or grouping with other plants can help boost ambient humidity.  Feed every six to eight weeks during the growing season with a diluted, balanced fertilizer to maintain healthy foliage and encourage steady, if slow, growth.

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