Kalāheo, Hawaiʻi (January 3, 2019) — The Hawaiʻi-based National Tropical Botanical Garden (NTBG) announced that effective January 1, 2019, the congressionally chartered institution’s new Director and Chief Executive Officer is Janet L. Mayfield. NTBG’s Board of Trustees approved Mayfield to succeed Charles R. “Chipper” Wichman, Jr. who served as Director and CEO from 2003–2018.