Heteromeles arbutifolia Heteromeles arbutifolia 'Davis Gold'
Heteromeles arbutifolia var. cerina 'Claremont' Heteromeles arbutifolia var. cerina 'Yellow Berry'
Heteropterys glabra Hibbertia aspera
Hibbertia cuneiformis Hibbertia empetrifolia
Hibbertia scandens Hibiscus arnottianus
Hibiscus rosa-sinensis Hibiscus rosa-sinensis 'Caleb'
Hibiscus rosa-sinensis 'Candy Striper' Hibiscus rosa-sinensis 'Daddy's Girl'
Hibiscus rosa-sinensis 'Dark Continent' Hibiscus rosa-sinensis 'Erin Rachael'
Hibiscus rosa-sinensis 'Fantasia' Hibiscus rosa-sinensis 'Hawaiian Salmon'
Hibiscus rosa-sinensis 'Jason' Hibiscus rosa-sinensis 'Kiss and Tell'
Hibiscus rosa-sinensis 'Smoky Mountian' Hibiscus rosa-sinensis 'Snow Queen'
Hibiscus rosa-sinensis 'The Pearl' Hibiscus rosa-sinensis 'TieDye Wind'
Hibiscus sabdariffa Hibiscus schizopetalus
Hibiscus syriacus Hibiscus syriacus 'America Irene Scott (Sugar Tip®)'
Hibiscus syriacus 'Antong Two (Lil' Kim™)' Hibiscus syriacus 'Aphrodite'
Hibiscus syriacus 'Armande' Hibiscus syriacus 'Blue Bird'
Hibiscus syriacus 'Blushing Bride' Hibiscus syriacus 'Brendon Springs'
Hibiscus syriacus 'Bricutts (China Chiffon™)' Hibiscus syriacus 'Buc de Brabant'
Hibiscus syriacus 'Cicola' Hibiscus syriacus 'Diana'
Hibiscus syriacus 'Dorothy Crane' Hibiscus syriacus 'DVPazurri (Azurri Blue Satin®)'
Hibiscus syriacus 'Floru(Violet Satin®)' Hibiscus syriacus 'Freedom'
Hibiscus syriacus 'Hamabo' Hibiscus syriacus 'Helene'
Hibiscus syriacus 'Jeanne d'Arc' Hibiscus syriacus 'JWNWOOD4 (Pink Chiffon™)'
Hibiscus syriacus 'Lady Stanley' Hibiscus syriacus 'Lenny'
Hibiscus syriacus 'Longhin' Hibiscus syriacus 'Maike'
Hibiscus syriacus 'Marina(Blue Satin®)' Hibiscus syriacus 'Mathilde(Blush Satin®)'
Hibiscus syriacus 'Meehannii' Hibiscus syriacus 'Melrose'
Hibiscus syriacus 'Minerva' Hibiscus syriacus 'Minrosa (Rose Satin®)'
Hibiscus syriacus 'Monstrosus' Hibiscus syriacus 'Notwoodone(Lavender Chiffon™)'
Hibiscus syriacus 'Notwoodthree (Blue Chiffon™)' Hibiscus syriacus 'Notwoodtwo(White Chiffon™)'
Hibiscus syriacus 'Paeonyflora' Hibiscus syriacus 'Pink Flirt'
Hibiscus syriacus 'Pink Giant' Hibiscus syriacus 'Pink Petticoat'
Hibiscus syriacus 'Puniceus Plenus' Hibiscus syriacus 'Purpureus Variegatus'
Hibiscus syriacus 'Ranululiflorus Plenus' Hibiscus syriacus 'Red Heart'
Hibiscus syriacus 'Roseus Plenus' Hibiscus syriacus 'Rubis'
Hibiscus syriacus 'Russian Violet' Hibiscus syriacus 'Snow Drift'
Hibiscus syriacus 'Totus Albus' Hibiscus syriacus 'Violet Claire'
Hibiscus syriacus 'White' Hibiscus syriacus 'Williiam R. Smith'
Hibiscus syriacus 'Woodbridge' Hibiscus tiliaceus
Hibiscus tiliaceus 'Tricolor' Hibiscus tiliaceus 'Variegata'
Hippophae rhamnoides Holboellia latifolia
Holmskioldia sanguinea Holmskioldia tettensis
Holodiscus discolor Homalocladium platycladum
Hovenia dulcis Howea forsteriana
Humata repens Hura crepitans