Hall's Japanese Honeysuckle
Harriman's Yucca
Havard Agave
Heartleaf Bergenia
Heavenly Bamboo
Heavenly Bamboo Compact
Heavenly Bamboo Dwarf Compact
Heavenly Bamboo harbour Dwarf
Hemp Plant
Hesperaloe Desert Son
Hesperaloe Yellow
Holly or Holm Oak
Hollyhock
Hollyleaf or Islay Cherry
Hollywood Twisted Juniper
Honey Locust, Sweet L., Honeyshuck
Howard McMinn Manzanita
Huachuca Agave
Hummingbird Trumpet
Hybrid Daylily (various)