Honolulu Board of Water Supply
– About the Halawa Xeriscape Garden
– Board of Water Supply
– Free Xeric Seed of the Month
– Halawa Xeriscape Garden Tours
– Oahu Planting Guide
– Native Hawaiian Plants
– Workshops at the Garden
University of Hawaii
– Botany Department: Native Hawaiian Plant Website
– Master Gardner Program
– Master Gardner Program: Gardening Helplines