Harry Lauder's Walking Stick
Heartleaf Bergenia, Winter Bergenia
Hearts and Flowers
Heavy Metal Switch Grass
Hedge Maple
Hetz Arborvitae
Hidcote English Lavender
Hidcote Goldencup Hypericum
Holly Oak, Holm Oak
Hollyhock
Hollywood Twisted Juniper
Homestead Purple Verbena
Honey Bush
Honey Locust, Sweet L., Honeyshuck
Honey or Texas Mesquite
Hopseed Bush, 'a'ali'i
Horsetail Rush
Horsetail Tree
Howard McMinn Manzanita
Hummingbird or Pitcher Sage