Holly Oak
Hollyhock
Hollyleaf or Islay Cherry
Hollywood Juniper
Homestead Purple Verbena
Honey Bush
Honey Myrtle, Granite-Bottlebrush
Honeywort
Hopa Crabapple
Hopseed Bush
Horsetail Tree
Howard McMinn Manzanita
Huachuca Agave
Hummingbird Sage, Pitcher Sage
Huntington Carpet Rosemary
Hybrid Daylily (various)
Hybrid Gazanias
Hybrid Naked Lady
Hybrid Tea Rose (selections)