Myoporum sandwicense

photo credit: Forest and Kim Starr

Best practices for survivability and field observations

A couple of respondents noted that it is an “amazing plant for restoration and can handle the heat and wind (example: Kohala Ranch). However, another noted that it is flammable and combustible. Another reported they have grown numerous naio (not “naio papa”) at 2000′ elevation. Cultural uses include the wood, scenting, medicinal, and ceremonial purposes.

Stressors and pests

Many note that it is moderate to very susceptible to thrips on several islands (so much so, that one project on O‘ahu no longer uses it for restoration). Thus, very curly, damaged leaves might not be pleasing to some homeowners. Another noted that the pest is not yet on Kaua’i or Maui. Whiteflies are also a noted problem. One said that goats do not prefer to eat naio (example: Polihale on Kaua‘i has high goat numbers and they do not touch it). Cuttings might blow over easier in high winds, as is true for most cuttings of anything.

Availability and propagation

Many said it is available, especially by seed which can be prolific. It is easily propagated by seed (found on state and private lands). Two respondents noted seedlings can be collected from under adult trees. Mixed reviews on its availability (DLNR-DOFAW is noted as wanting to plant it). Others note that it is easy to propagate from abundant seeds. One recommends collecting when the fruit is still white (not brown) and planting immediately for good germination. The same respondent notes that “brown fruits have seeds that have entered dormancy and can germinate sporadically for years and years.” A couple of respondents note that some varieties grow easily from cuttings, like the low growing “naio papa type” (from Hawai‘i Island) which is said to be hardier.

Survey Results

For information about the survey, refer to our article: on Coastal Plants for Creating Green Breaks