'Blue Alberta' White Spruce Blue Beaked Yucca 'Rosenkuppel'
'Blue Billow' Sawtooth Hydrangea Blue Brush (spp.)
Blue Brush 'Skylark' 'Blue Bunny™' Bracted Hydrangea
'Blue Buttons' Ceanothus: hybrid 'Blue Chiffon™' Rose of Sharon
'Blue Chip' Creeping Juniper Blue Cycad
Blue Daisy Bush 'Blue Gem' 'Blue Danube' Savin Juniper
Blue Elder Blue Elderberry
Blue Flax: lewisii 'Blue Gem' Blue Daisy Bush
Blue Hibiscus (spp.) Blue Hibiscus 'Santa Cruz'
Blue Holly (spp.) Blue Holly 'Blue Prince®'
Blue Holly 'Blue Princess®' Blue Holly 'Castle Spire®'
Blue Holly 'Castle Wall™' Blue Holly 'Honey Maid™'
Blue Huckleberry 'Blue Ice' Bog Rosemary
'Blue Jeans' Holly Leaf Mountain Lilac 'Blue Knoll' Blue Mist Spirea
Blue Leschenaultia Blue Mallee
'Blue Mist' Dwarf Fothergilla Blue Mist Spirea (spp.)
Blue Mist Spirea 'Arthur J. Simmonds' Blue Mist Spirea 'Blue Knoll'
Blue Mist Spirea 'Dark Knight' Blue Mist Spirea 'Kew Blue'
Blue Mist Spirea 'Lil Miss Sunshine™' Blue Mist Spirea 'Longwood Blue'
Blue Mist Spirea 'Petit Bleu™' Blue Mist Spirea 'Worcester Gold'
'Blue Muffin®' Arrowwood Viburnum 'Blue Peckle' Bigleaf Hydrangea
'Blue Pfitzer' Chinese Juniper Blue Porterweed
Blue Potato Bush (spp.) 'Blue Prince®' Meserve Holly
'Blue Princess®' Meserve Holly Blue Rat's Tail 'Prostrate Blue'
Blue Snakeweed Blue Spruce Dwarf Blue
Blue Spruce 'Glauca Compacta' Blue Spruce 'Glauca Globosa'
Blue Spruce 'Globosa' Blue Spruce 'Montgomery'
Blue Spruce 'Prostrate Blue Mist' Blue Spruce 'Ruby Teardrops'
Blue Spruce 'St. Mary's Broom' Blue Spruce 'Thume'
'Blue Vase' Chinese Juniper 'Blue Velvet™' St. Johnswort: Hypericum
'Blue Wave' Bigleaf Hydrangea Bluebeard 'Snow Fairy'
Bluebeard (spp.) Bluebeard 'Arthur J. Simmonds'
Bluebeard 'Blue Knoll' Bluebeard 'Dark Knight'
Bluebeard 'Kew Blue' Bluebeard 'Lil Miss Sunshine™'
Bluebeard 'Longwood Blue' Bluebeard 'Petit Bleu™'
Bluebeard 'Worcester Gold' Bluebeard: incana (spp.)
Bluebeard: incana 'Jason(Sunshine Blue®)' Blueberry Ash
Blueberry Tree Blueberry 'Chippewa'
Blueberry 'Duke' Blueberry 'Pink Lemonade'
Blueberry, American (spp.) Blueberry, American 'Herbert'
Blueberry, American 'Sunshine Blue' Blueberry, Highbush (spp.)
Blueberry, Highbush 'Herbert' Blueberry, Highbush 'Sunshine Blue'
Blueberry, Lowbush Blueberry, Mountain
Blueberry, Northern Lowbush Blueberry, Swamp (spp.)
Blueberry, Swamp 'Herbert' Blueberry, Swamp 'Sunshine Blue'
Blueblossom (spp.) Blueblossom 'Skylark'
Bluecurls, Mountain Bluecurls, Parish's
'Bluer Heinz' Boxwood 'Blues Festival™' Kalm St. Johnswort
'Blush of Dawn' Fuchsia 'Blushing Bride' Rose of Sharon
'Blushing Knock Out®' Rose 'Blushing Spires' Chastetree