UH Unveils New Heat-Tolerant Protea for Lower-Elevation Farms

Oct 29, 2026

University of Hawaii researchers have bred a new type of pincushion protea that can grow in hotter, lower-elevation areas, opening up new farming opportunities for growers across the islands.

  • A UH Manoa team led by Professor Kenneth Leonhardt spent years breeding the flower to handle heat.
  • Until now, this protea only grew in the cool mountain air of upper Maui and the Big Island.
  • The new heat-tolerant version lets more farmers grow it at lower, warmer elevations.
  • UH has already given out more than 11,000 of the new plants to growers on the Big Island.

Outlook: Wider availability of this heat-tolerant protea should help expand Hawaii's flower farming industry to new growing regions.

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