Family: Myrtaceae

Origin, Description & Uses
Melaleuca nesophila (mauve honey-myrtle) is a small to medium-sized evergreen tree or large shrub native to western and southern Western Australia. It is valued for its rounded form, silvery-gray foliage, and showy mauve to pink bottlebrush-like flowers that attract bees, butterflies, and other pollinators. This species is widely cultivated as an ornamental landscape plant in warm climates due to its drought tolerance, coastal wind resistance, and ability to thrive in sandy or poor soils. Mauve honey-myrtle is commonly planted as a screening hedge, specimen tree, or nectar source in gardens and urban landscapes.

Risks & Threats
Although Melaleuca nesophila is currently not known to be naturalized in the Hawaiian Islands, it possesses several traits that are cause for concern in tropical island ecosystems. Like other members of the Melaleuca genus, it is adaptable to a range of environmental conditions, produces abundant seeds, and can tolerate drought, salt spray, and nutrient-poor soils. These characteristics may increase its potential to spread beyond cultivation and compete with native vegetation in sensitive coastal and dryland habitats. Dense growth could also alter habitat structure and reduce biodiversity if the species were to escape cultivation. Because of these risks, Plant Pono recommends choosing low risk or native alternatives whenever suitable options are available.

High Risk Traits:

• Naturalized beyond native range (Victoria, Australia)
  
• Considered a serious environmental weed threat
  
• Congeneric (M. quinquenervia) is a notorious invasive weed
  
• Forms dense thickets
  
• Reproduces by viable seed
  
• Wind- and water-dispersed seeds
  
• Intentionally dispersed by people

Low Risk Traits:

• Not shade tolerant (prefers sun)
  
• Narrow soil tolerance (prefers alkaline, well-drained)
  
• No spines, thorns, or burrs
  
• No evidence of toxicity to animals or humans
  
• Not likely dispersed as a produce contaminant or by birds/animals