'Gumball (Lollipop)' Sweetgum Gumbo Lily
Gumbo (spp.) Gumbo 'Burgundy'
Gumbo 'Little Lucy' Gumbo-limbo
'Gunji' Azalea Gunnera: tinctoria
Guzmania 'Minor' Guzmania 'Orangeade'
Guzmania 'Rana' Guzmania 'Spendreit'
Guzmania 'Vella Red' Guzmania: amaranth
Guzmania: sanguinea 'Gyokruya' Japanese Cedar
'Gypsy' Low Baby's Breath 'H.E. Beale' Scotch Heather
'Haarswell Haze' Siberian Iris 'Habanera MIx' English Daisy
'Habanera White/Rose' English Daisy Hackberry
Hackberry, African Hackberry, Canyon
Hackberry, Chinese (spp.) Hackberry, Chinese 'Green Cascade'
Hackberry, Common (spp.) Hackberry, Common 'Prairie Pride'
Hackberry, Desert Hackberry, European
Hackberry, Mediterranean Hackberry, Netleaf
Hackberry, Sugar (spp.) Hackberry, Sugar 'All Seasons'
Hackberry, Weeping Japanese (spp.) Hackberry, Weeping Japanese 'Green Cascade'
Hackberry, Western Hackmatack
'Hadsbury' Bigleaf Hydrangea 'Hadspen Cream' Siberian Bugloss
'Haense Hermes' Switch Grass Hag Taper
Hagbrier 'Haggerston Gray' Leyland Cypress
Hair Fescue Grass Hair Grass (spp.)
Hair Grass 'Gold Selection' Hair Grass 'Goldgehaenge(Gold Shower)'
Hair Grass 'Northern Lights' Hair Grass 'Schottland(Scotland)'
Hair Grass: acicularis Hair Palm
Hairpin Banksia (spp.) Hairpin Banksia 'Dwarf Hairpin'
Hairpin Banksia: spinulosa cunninghamii Hairy Alum Root (spp.)
Hairy Alum Root 'Autumn Bride' Hairy Alum Root 'Night Watch'
Hairy Alum Root 'Purpurea' Hairy Alumroot (spp.)
Hairy Alumroot 'Autumn Bride' Hairy Alumroot 'Night Watch'
Hairy Alumroot 'Purpurea' Hairy Boronia 'Rose Blossom'
Hairy Ceanothus Hairy Dewflower
Hairy Finger Grass Hairy Hop tree (spp.)
Hairy Hop tree Golden Hairy Lip Fern
Hairy Loosestrife (spp.) Hairy Loosestrife 'Atropurpurea'
Hairy Loosestrife 'Firecracker' Hairy Loosestrife 'Purpurea'
Hairy Sophora Hairy Stemmed Wattle
Hairy Toad Lily (spp.) Hairy Toad Lily 'Golden Gleam'
Hairy Toad Lily 'Miyazaki' Hairy Toad Lily Variegated
Hairy Toad Lily: hybrid 'Empress' Hairy Toad Lily: hybrid 'Hatatogisa'
Hairy Toad Lily: hybrid 'Kohaku' Hairy Toad Lily: hybrid 'Lightning Strike'
Hairy Toad Lily: hybrid 'Shining Light' Hairy Toad Lily: hybrid 'Taipei Silk'
Hairy Toad Lily: hybrid 'Tojen' 'Hakone Blue' Balloon Flower
Hakone Grass 'Albo Strata' Hakone Grass 'All Gold'
Hakone Grass 'Beni-Kaze' 'Hakuro Nishiki' Willow
Halberd Leaved Violet 'Halcyon' Hosta
'Haleakala' Copperleaf 'Haley's Comet' Star Anise
'Halka' Japanese Zelkova 'Halka' Thornless Honey Locust