'Guernsey Cream' Hybrid Clematis 'Guizhou' White Mugwort
'Gulang Red' Sacred Lotus Gum Tragacanth
Gum Tragacanth: balearicus Gum Tragacanth: crassicarpus
Gumbo Lily Gumbo (spp.)
Gumbo 'Burgundy' Gumbo 'Little Lucy'
Gunnera: tinctoria Guzmania 'Minor'
Guzmania 'Orangeade' Guzmania 'Rana'
Guzmania 'Spendreit' Guzmania 'Vella Red'
Guzmania: amaranth Guzmania: sanguinea
'Gypsy' Low Baby's Breath 'Haarswell Haze' Siberian Iris
'Habanera MIx' English Daisy 'Habanera White/Rose' English Daisy
'Hadspen Cream' Siberian Bugloss 'Haense Hermes' Switch Grass
Hag Taper 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
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 Dewflower Hairy Finger Grass
Hairy Lip Fern Hairy Loosestrife (spp.)
Hairy Loosestrife 'Atropurpurea' Hairy Loosestrife 'Firecracker'
Hairy Loosestrife 'Purpurea' 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'
Halberd Leaved Violet 'Halcyon' Hosta
'Hall's Pink' Daylily 'Hamelin' Chinese Fountain Grass
Hammock Fern 'Hanafubuki' Picotee Morning Glory
'Hanajina' Blue Clematis 'Hanakisoi' Japanese Tree Peony
Hand Fern Hanging Geranium (spp.)
Hanging Geranium 'Colorcade Lavender' Hanging Geranium 'Sunset'
'Hankie' Florist's Chrysanthemum Haplopappus
'Happy Dreams' Garden Petunia 'Happy Festival' Baby's Breath
'Happy Returns' Daylily 'Happy Wanderer' Lilac Vine