Horsetail Tree
Howard McMinn Manzanita
Huachuca Agave, Orange Century Plan
Hummingbird Sage, Pitcher Sage
Huntington Carpet Rosemary
Hybrid Daylily (various)
Hybrid Gazanias
Hybrid Halimiocistus
Hybrid Naked Lady
Hybrid Tea Rose (selections)
Iceberg Floribunda Rose
Icee Blue Yew Pine
Iceland Poppy
Idaho Locust
Imperial Bronze Bearded Iris
Improved Meyer Lemon
Incana Cranesbill
Incense Cedar
Indian Currant, Coralberry
Indian Hawthorne or Rhaph