Neodypsis decaryii

Culture
Very adaptable to soil types but should be well drained. No major pests or diseases.
Light: Bright sun.
Moisture: Although adaptable once established, this palm requires irrigation in dry areas.
Hardiness: USDA Zones 10 – 11. Although can tolerate cooler temps once established.
Propagation: By seed which germinates in 1-2 months.
Usage
With this palm, it’s hip to be square…or at least a triangle. Combine this tree’s unique geometric-shaped base with its tall impressive leaves and you have a landscaper’s dream that can be used as a specimen or to frame an entranceway. Unfortunately, I feel it isn’t used enough. Recently, however, its’ sister, Neodypsis lastelliana, The teddy bear palm, has come into cultivation and seems to be popular with its fuzzy brown crown shaft. Perhaps the triangle palm will soon follow!

References:

https://floridata.com/Plants/Arecacea/Neodypsis decaryi/568