Hill Country Penstemon
Holly Oak
Hollyhock
Hollywood Twisted Juniper
Honey Locust, Sweet L., Honeyshuck
Hopseed Bush
Huachuca Agave
Idaho Magenta Locust
Improved Lantana
Improved Meyer Lemon
Indian Blanketflower
Indian Fig
Indian Hawthorn
Indian Pink, Mexican Campion
Indian Rosewood
Indigo Bush
Italian Cypress
Italian Stone, Umbrella or Stone Pi
Ivory Towers Needle
