Family: Malvaceae

Origin, Description & Uses
Blue mahoe (Hibiscus elatus) is a large, fast-growing flowering tree native to Cuba and Jamaica. It is valued for its attractive form, glossy green foliage, and showy hibiscus-like flowers that typically open yellow and gradually change to orange or reddish as they age. The tree is also renowned for its beautiful, durable wood, which ranges from golden brown to bluish-green streaked heartwood and is highly prized for fine furniture, cabinetry, musical instruments, veneers, and specialty woodworking. Blue mahoe is also planted as a shade tree, ornamental landscape specimen, and for reforestation and erosion control in suitable tropical climates.

Risks & Threats
Blue mahoe is considered a low-risk species for Hawaii. It is not known to be naturalized in the Hawaiian Islands and has shown little evidence of spreading beyond cultivation. While it produces seeds and can regenerate under favorable conditions, there are no indications that it forms invasive populations or displaces native vegetation. As with any introduced species, it should be planted responsibly and monitored to ensure it remains confined to cultivated areas, but current evidence suggests it poses minimal risk to Hawaii’s natural ecosystems.

High Risk Traits:

• Naturalized in Florida, Mexico, South America, and West Indies
  
• Wide climate tolerance (altitude, rainfall, temperature, soils)
  
• Shade-tolerant; sprouts after cutting
  
• High viable seed output; persistent seed bank
  
• Hybridizes; congeneric species are weeds

Low Risk Traits:

• Not a weed (garden, ag, or environmental)
  
• No spines, toxins, or allelopathy
  
• Few pests/diseases
  
• No vegetative spread
  
• No external dispersal (wind, water, animals); seeds drop locally