Anyone know the name of the large bushes with pink

[Carey]

CTAHR report has that the first Tibouchina Hawaii specimen was collected was in 1917 in Kilaeua (OAHU). A scientific paper from 1930 traced the introductions to 1910 at an estate in Kurtistown, introduction was from South America.

Added: added, the botanist who wrote the 1930 report already predicted the potential for Tibouchina & other botanicals to displace the native vegetation...