'Altona' Bigleaf Hydrangea 'Amagi Amacha' Sawtooth Hydrangea
'Ambassador' Rose 'Amber Queen' Rose
'America' Rose American Angelica Tree
American Arborvitae 'Anna's Magic Ball™' American Arborvitae 'Compacta'
American Arborvitae 'Danica' American Arborvitae 'Ericoides'
American Arborvitae 'Filiformis Nana' American Arborvitae 'Filip's Magic Moment'
American Arborvitae 'Froebelii' American Arborvitae 'Globosa Rheindiana'
American Arborvitae 'Hoveyi' American Arborvitae 'Little Elfie'
American Arborvitae 'Little Gem' American Arborvitae 'Little Giant'
American Arborvitae 'Minima' American Arborvitae 'Minuta'
American Arborvitae 'Pumila Sudworth' American Arborvitae 'Recurva Nana'
American Arborvitae 'Rheingold' American Arborvitae 'Sherwood Moss'
American Arborvitae 'Techny Gold™' American Arborvitae 'Teddy'
American Arborvitae 'Tiny Tim' American Arborvitae 'Umbracalifera'
American Arborvitae 'Wareana' American Arborvitae 'Wareana Hollandica'
American Arborvitae Weeping American Arborvitae 'Woodwardii'
American Beautyberry American Blueberry (spp.)
American Blueberry 'Herbert' American Blueberry 'Sunshine Blue'
American Boxwood (spp.) American Boxwood 'Butterwort'
American Boxwood 'Clembrook' American Boxwood 'Edgar Anderson'
American Boxwood 'Fastigiata' American Boxwood 'Herman von Schpenck'
American Boxwood 'Latifolia Macrophylla' American Boxwood 'Memorial'
American Boxwood 'Myosotidifolia' American Boxwood 'Pyramidalis'
American Boxwood 'Salicifolia Elata' American Boxwood 'True Spreader'
American Boxwood Variegated American Boxwood Weeping
American Boxwood 'Woodland' American Cranberrybush Viburnum (spp.)
American Cranberrybush Viburnum 'Alfredo' American Cranberrybush Viburnum 'Compactum'
American Cranberrybush Viburnum Dwarf American Cranberrybush Viburnum 'Wentworth'
American Dogwood 'Arctic Fire™' American Dogwood 'Baileyi'
American Dogwood 'Kelseys Gold' American Dogwood 'Neil Z (Pucker Up!®)'
American Elderberry (spp.) American Elderberry Golden
American Elderberry 'Johns' American Filbert
American Hazelnut 'American Heritage' Rose
American Holly 'Bountyful' American Holly 'Mary Holman'
American Holly 'Miss Helen' American Powderpuff
American Snowbell American Styrax
American Sweet Gum 'Globe' American Sweet Gum 'Gumball (Lollipop)'
American Sweetgum 'Globe' American Sweetgum 'Gumball (Lollipop)'
American Wisteria 'Amethyst Falls' 'Ames' Kalm St. Johnswort
'Amethyst Falls' American Wisteria 'Amethyst' Japanese Wisteria
'Amethyst™' Snowberry 'Ami Schott' Lilac
'Amity Wilson' Japanese Camellia Amur Honeysuckle
Amur Maple (spp.) Amur Maple 'Acontifolium'
Amur Maple 'Vitifolium' 'Amy Cotta' Rhododendron: (n)
'Anabel' Lilac: hyacinthiflorahybrid 'Andelyensis' Atlantic White Cedar
Anderson Wolfberry Anderson's Desert Thorn
Andromeda, Chinese Andromeda, Japanese (spp.)
Andromeda, Japanese 'Compacta' Andromeda, Japanese 'Dorothy Wycoff'
Andromeda, Japanese 'Little Heath' Andromeda, Japanese 'Mt. Fire'
Andromeda, Japanese 'Valley Rose' Andromeda, Japanese Variegated