Hard Fern Hardy Ageratum
Hardy Aloe Hardy Amaryllis
Hardy Begonia Hardy Begonia: grandis
Hardy Biokova Geranium (spp.) Hardy Biokova Geranium 'Biokovo'
Hardy Biokova Geranium 'Biokovo Karmina' Hardy Century Plant
Hardy Chrysanthemum 'Cambodian Queen' Hardy Gloxinia 'Evita'
Hardy Gloxinia (spp.) Hardy Gloxinia 'Snowtop'
Hardy Grape Leaf Anemone 'Robustissima' Hardy Ice Plant 'Starburst'
Hardy Orange Gloxinia Hardy Orchid
Hardy Pampas Grass Hardy Zinnia (spp.)
Hardy Zinnia 'Ballerina' Hardy Zinnia 'Summer Sun'
Harebell (spp.) Harebell Speedwell 'Aztec Gold'
Harebell Speedwell 'Blue Sheen' Harebell 'Olympica'
Harebell, Carpathian (spp.) Harebell, Carpathian 'Bavaria Blue'
Harebell, Carpathian 'Blue Clips' Harebell, Carpathian 'Blue Moonlight'
Harebell, Carpathian 'Blue Uniform' Harebell, Carpathian 'Deep Blue Clips'
Harebell, Carpathian 'Pearl Deep Blue' Harebell, Carpathian 'White Uniform'
Harebell: symphiandrahybrid Hare's Foot Fern
Hare's Tail Harlequin Blueflag
Harlequin Flower Harlequin Flower: tricolor
'Harlequin' French Marigold 'Harlequin Mix' Dahlia
'Harmonic Convergence' Alumroot: Heuchera 'Harmony' Dwarf Iris
Hartweg's Sundrops 'Harvard' Florist's Chrysanthemum
'Harvest Amanda' Dahlia 'Harvest Moon' Strawberry Begonia
Harvest-Lice 'Harveyi' Hybrid Geranium
'Hatatogisa' Hybrid Toad Lily Hatpin Cactus
'Havana Appleblossom' Flowering Tobacco 'Hawaii White' Garden Ageratum
Hawaiian Bell Hawaiian Ti Plant (spp.)
Hawaiian Ti Plant 'Exotica' 'HawaiianŽ Black Coral' Green Taro
Hawkweed 'Leopard' Hawkweed, Mouse Ear
Hawkweed, Wooly Hawkweed: aurantiaca
Haworthia Hay Fever Weed
Hay Scented Fern Haze Vine, Brazillian
He Sho Wu 'Headbourne hybrids' Lily of the Nile: Agapanthus
Heart Leaf Geranium Heartleaf Bergenia (spp.)
Heartleaf Bergenia 'Bressingham White' Heartleaf Bergenia 'Perfect'
Heartleaf Bergenia 'Rotblum' Heartleaf Bergenia 'Winterglut (Winter Glow)'
Heartleaf Foamflower (spp.) Heartleaf Foamflower 'Brandywine'
Heartleaf Foamflower 'Dark Eyes' Heartleaf Foamflower 'Ink Blot'
Heartleaf Foamflower 'Oakleaf' Heartleaf Foamflower 'Pink Bouquet'
Heartleaf Foamflower 'Running Tapestry' Heartleaf Foamflower 'Winterglow'
Heartleaf Oxeye Daisy 'Hearts Afire' Daylily
Heart's Ease (spp.) Heart's Ease 'Bingo Blue Frost'
Heart's Ease 'Crown Golden' Heart's Ease 'Fancy Dark-Eyed Blue'
Heart's Ease 'Fancy Dark-Eyed Red' Heart's Ease 'Fancy Dark-Eyed Yellow'
Heart's Ease 'Fancy Golden Yellow' Heart's Ease 'Fancy Purple & White'
Heart's Ease 'JokerŽ Rot-Gold' Heart's Ease 'Jolly JokerŽ'
Heart's Ease 'Universal Orange Plus' Hearts Entangled
Hearts on a String Heartsease
Heartseed