Hollywood Twisted Juniper
Honey Locust, Sweet L., Honeyshuck
Howard McMinn Manzanita
Huachuca Agave
Hummingbird Trumpet
Hybrid Daylily (various)
Hybrid Flowering Plum
Hybrid Tea Rose (selections)
Iceberg Floribunda Rose
Idaho Locust
Improved Columbine
Incana Cranesbill
Incense Cedar
Indian Hawthorne
Indigo Bush
Italian Alder
Italian Buckthorn
Italian Cypress
Italian Stone, Umbrella or Stone Pi
Japanese Anemone
