HI SB435

Requires all state-funded landscaping projects for new or renovated buildings, facilities, and housing to incorporate Hawaiian plants, subject to established exceptions.

Establishes a phased implementation timetable: 10% Hawaiian plants by January 1, 2019; 25% by January 1, 2025; and 35% by January 1, 2030, measured as percentage of total plant footprint.

Defines "Hawaiian plants" to include endemic or indigenous species occurring naturally in Hawaii, and plants brought by Polynesians before European contact such as kukui, kalo, wauke, niu, noni, and kamani.

Requires Hawaiian plants to be sourced from and used on the specific island or ahupua'a where the species was found or known to occur prior to European contact, and mandates clear identification signs for public education.

Allows the purchasing agency head to determine exceptions to requirements using procedures established by the policy board, which may adopt rules under chapter 91.