The Triangle Palm Tree, scientific name Dypsis decaryi, is a very striking palm known for its tristichously arranged leaves that form a triangle.
The palm is a great ornamental plant that can be grown indoors or outdoors in the open to show its unique shape.
Triangle Palm Tree Profile
Scientific name: Dypsis decaryi
Common names: The Triangle Palm is also known as Three Sided Palm and Neodypsis decaryiraveler’s Tree.
Origin: It is native to Madagascar Island.
Appearance: It has single smooth, upright, trunk, 9-13 inches in diameter, brownish-gray, ringed by the scars from the fallen fronds. Overlapping leaf-bases grow from three distinct points of the trunk, forming a triangle, hence the name Triangle Palm.
Leaves are pinnate, or feather-like, arching almost upright, about 10ft long and 3ft wide, segmented, bluish-green above and beneath, supported by brown petiole covered in a whitish bloom.
Flowers/Fruits: The Triangle Palm produces yellowish green flowers that are held by 4 ft long branched petioles emerging from the lower leaves. The Triangle Palm is monoecious, male and female flower are born on the same plant.
Flowers are followed by round black inedible fruit about 1 inch in diameter. This beautiful palm blooms all year long, thus making it especially colorful.
Growth Rate: Moderate to Fast. Dypsis decaryi can grow up to 10 – 20 ft tall and 10-15 ft wide.
Outdoor/Indoor Use: Both.Triangle Palm Tree can also grow indoors.
Cold Tolerance: It can tolerate temperatures down to 30F for a short period of time when mature enough. During cold temperatures it should be kept as dry as possible. Great for growing in the USDA Zones 10a (30 to 35 F) to 11 (above 40 F).
Light Req:It likes full sun but can also grow in light shade.
Water Req: Moderate to Low. It does not require a lot of water so make sure you let soil dry between watering and provide good drainage. You can use general purpose potting soil with some added sand.
Maintenance: Easy. To prevent nutritional deficiency, apply good quality palm fertilizer that has continuous release formula twice a year during growing season.
Propagation: Propagated by seeds and division. Seeds take only about 1-2 months to germinate.