Perennials: Homa - Hort (84)
Homalomena
Home Fires Creeping Phlox
Homeria
Homolosa Bush Clover
Honest Pleasure Daylily
Honesty Money Plant
Honesty (spp.)
Honesty Honesty
Honesty Variegated
Honesty White
Honey Euphorbia
Honey Plant (spp.)
Honey Plant Variegated
Honeybells Hosta
Honeydew Sage
Honeysong Purple Stokes' Aster
Honeysuckle, Mexican
Honeywort Golden
Honeywort Purpurascens
Hong Chow Bowl Sacred Lotus
Hong Kong Lily
Honka Dahlia
Honky Tonk Blues Tall Bearded German Iris
Hoodia
Hoodia: gordonii
Hoop & Petticoat Daffodil
Hoosier Harmony Hosta
Hop Goodenia
Hop Marjoram (spp.)
Hop Marjoram Amargcus Dictamnus
Hop, Common Golden
Hop, Common Summer Shandy™
Hop, Common Variegatus
Hop, European Golden
Hop, European Summer Shandy™
Hop, European Variegatus
Hop, False
Hope Florist's Chrysanthemum
Hops, Ornamental Golden
Hops, Ornamental Summer Shandy™
Hops, Ornamental Variegatus
Horizontalis Calico Aster
Horn of Plenty Flore Pleno
Horned Pansy (spp.)
Horned Pansy Alba Minor
Horned Pansy Black Magic
Horned Pansy Jupiter
Horned Pansy Penny Primrose
Horned Pansy Splendens
Horned Pansy White
Horned Tulip
Horned Violet (spp.)
Horned Violet Alba Minor
Horned Violet Black Magic
Horned Violet Jupiter
Horned Violet Penny Primrose
Horned Violet Splendens
Horned Violet White
Horse Gentian
Horse Nettle
Horsefoot
Horse-heal
Horsehoof
Horsemint (spp.)
Horsemint Cherokee
Horsemint Jacob Cline
Horsemint Mahogany
Horsemint Marshal's Delight
Horsemint Mohawk
Horsemint Panorama
Horsemint Prairie Night
Horsemint Purpurkrone
Horsemint Vintage Wine
Horsemint: punctata
Horses Tail
Horsetail
Horsetail Restio
Horsetail, Common
Horsetail, Field
Horsetail, Mini
Horsetail, Rough
Horsetail: hyemale
Horsfall's Morning Glory
Hortensis Japanese Aster