Family: Arecaceae

Native to Madagascar, the triangle palm is common in cultivation. This low-maintenance palm gets its common name from the triangle-shaped frond arrangement. The stiff green fronds have a feathery appearance. It stays relatively short in stature compared to other palm species.

Potassium deficiency and sooty molds can be problematic. Feed the palm twice a year with a slow-release fertilizer and maintain potassium levels, especially if the fronds turn yellow. It can handle periods of drought but should be watered after planting to ensure a successful transplant.

Plant Uses:

• Container plant
• Ornamental
• Specimen

Plant Dangers:

• No dangers

High Risk Traits:

• Broad climate suitability (USDA zones 9b–11)
  
• Tolerates wide range of soil conditions
  
• History of repeated introductions outside native range
  
• Produces viable seed; germinates readily (1–2 months)
  
• Seeds intentionally dispersed by people (ornamental horticulture)
  
• Seeds dispersed by birds and mammals (endozoochory)

Low Risk Traits:

• No evidence of naturalization anywhere
  
• Not recorded as a weed (garden, agricultural, or environmental)
  
• Very slow to mature (first flowering at 25–35 years)
  
• Obligate outcrosser (self-incompatible)
  
• No vegetative reproduction
  
• Not a prolific seed producer
  
• Seedlings sensitive to fire and shade
  
• No specialized dispersal mechanisms (no wind, water, or external attachment)