• (1) H Hawaii Desert-Thorn - Hai Zao
• (2) Hai Zhou Chang Shan - Hairy Puccoon
• (3) Hairy Purslane - Hall Sedge
• (4) Hall´s Bullrush - Happy Bandit Daylily
• (5) Happy Beauty Daylily - Hardy Ice Plant
• (6) Hardy Japanese Holly Fern - Haricot D´espagne
• (7) Haricot D´espagne à Fleurs Blanches - Harvest Gold Canna Lily
• (8) Harvest Green Daylily - Hawaiian Ti
• (9) Hawaiian Ti Leaf - Hazelnut
• (10) Hazelnut - Heartleaf Aster
• (11) Heartleaf Bergenia - Hedge Maple
• (12) Hedge Maple - Heller's Whitlowgrass
• (13) Heller's Whitlowgrass - Herb Robert
• (14) Herb Sophia - Hhabb El Hâl (Habbu Al Hal)
• (15) Hhabb el misk - Highway To Heaven Daylily
• (16) Higo - Hinahina
• (17) Hinahina - Hoary Chess
• (18) Hoary Chess - Holly
• (19) Holly - Honey Dew Melon
• (20) Honey Dew Melon - Hooker's Manzanita
• (21) Hooker's Manzanita - Horseford Dwarf Hybrid White Pine
• (22) Horsegram - Hosta
• (23) Hosta - Hosta
• (24) Hosta - Hot Pepper
• (25) Hot Pepper - Hot Pepper
• (26) Hot Pepper - Hot Pepper
• (27) Hot Pepper - Houseleek
• (28) Houseleek - Huaco
• (29) Huaco - Hummingbird Vine
• (30) Hummingbird Vine - Hybrid Echeveria
• (31) Hybrid Echinopsis - Hybrid Epiphyllum
• (32) Hybrid Epiphyllum - Hybrid Epiphyllum
• (33) Hybrid Epiphyllum - Hybrid Tea
• (34) Hybrid Tea - Hybrid Tea Rose
• (35) Hybrid Tea Rose - Hgel Klee