Honey Myrtle, Granite-Bottlebrush
Honeywort
Hopseed Bush
Horsetail Reed
Horsetail Tree
Hot Lips Sage
Howard McMinn Manzanita
Huachuca Agave
Hummingbird Sage, Pitcher Sage
Huntington Carpet Rosemary
Hybrid Daylily (various)
Hybrid Gazanias
Hybrid Naked Lady
Hybrid Tea Rose (selections)
Hybrid White Rockrose
Hypericum Hidcote
Iceberg Floribunda Rose
Iceland Poppy
Imperial Bronze Bearded Iris
Improved Meyer Lemon