Bigleaf Goldenray (spp.) Bigleaf Goldenray 'Desdemona'
Bigleaf Goldenray 'Othello' Bigleaf Periwinkle (spp.)
Bigleaf Periwinkle 'Even Steven' Bigleaf Periwinkle 'Gold Vein'
Bigleaf Periwinkle Variegated Bigroot Geranium (spp.)
Bigroot Geranium 'Ingwersen's Variety' Bigroot Geranium 'Walter Inquersen'
'Bikini' Winged Everlasting 'Bill Baker Form' Solomon's Seal
'Bill Baker' Thick Leaf Phlox Bindweed
'Bingo Blue Frost' Pansy 'Biokovo' Cambridge Geranium
'Biokovo Karmina' Cambridge Geranium Bird of Paradise
Bird's Eye 'Giles Van Hees' Bird's Eye 'Miffy Brute'
Bird's Eye 'New Century' Bird's Foot Violet (spp.)
Bird's Nest Bromeliad Bird's Nest Fern
Bird's Nest Fern: spp. Birdsfoot Trefoil
Birthwort: gigantea Bishop's Cap Cactus
Bishop's Hat 'Frohnleiten' Bishop's Hat (spp.)
Bishop's Hat 'Rose Queen' Bishop's Hat 'Spring Wedding'
Bishop's Hat: rubrumhybrid (spp.) Bishop's Hat: warleyensehybrid
Bishop's Hood Cactus Bishop's Mitre 'Frohnleiten'
Bishop's Mitre (spp.) Bishop's Weed (spp.)
Bishop's Weed Variegated Bishopwort (spp.)
Bishopwort 'Grandiflora' Bistort, European
Bittersweet Black Aeonium (spp.)
Black Aeonium Variegated Black Aeonium 'Zwartkop'
'Black and Blue' Sapphire Sage Black Bamboo (spp.)
Black Bamboo: nigra henonis 'Black Barlow' European Columbine
Black Blood Black Boy
'Black Cherry' Daylily 'Black Eyed Stella' Daylily
'Black Eyed Susan' Daylily Black Ginger 'Midnight'
Black Iris 'Black Magic' Horned Violet
'Black Magic Rose' Hybrid Geranium 'Black Pearl' Ornamental Chili Pepper
Black Pepper Black Root (spp.)
Black Root White Black Root: virginicum sibericum
Black Sampson (spp.) Black Sampson 'Bright Star'
Black Sampson 'Kim's Knee High' Black Sampson 'Kim's Mophead'
Black Sampson 'Magnus' Black Sampson 'Primadonna® Rose'
Black Sampson 'Ruby Star' Black Sampson 'Stewarts Pink'
Black Sampson 'Stewarts Red' Black Sampson 'White King'
Black Sampson 'White Swan' Black Spined Agave
Black Sweet Potato (spp.) Black Sweet Potato 'Blackie'
Black Sweet Potato 'Chartreuse' Black Sweet Potato 'Pink Frost'
Black Sweet Potato 'Sulfur' Black Sweet Potato 'Sweet Caroline Bright Green'
Black Sweet Potato 'Sweet Caroline Bronze' Black Sweet Potato 'Sweet Caroline Light Green'
Black Sweet Potato 'Sweet Caroline Purple' Black Sweet Potato 'Tricolor'
'Black Velvet' Foamflower: Tiarella Black Widow 'Lily Lovell'
Black Widow 'Purpureum' Black Widow 'Samobor'
Blackberry 'Blackberry Ice' Double Impatiens
Blackberry Lily (spp.) Blackberry Lily Dwarf
'Blackbird' Spurge: Euphorbia Black-eyed Susan 'Goldsturm'
Black-eyed Susan (spp.) Black-eyed Susan Vine (spp.)
Black-eyed Susan Vine 'African Sunset Mix' Black-eyed Susan Vine 'Apricot'
Black-eyed Susan Vine 'Orange' Black-eyed Susan Vine 'Sunny™ Lemon Star'
Black-eyed Susan Vine 'Sunny™ Orange Star' Black-eyed Susan Vine 'Sunny™ Orange Wonder'
Black-eyed Susan 'Autumn Colors' Black-eyed Susan 'Autumn Forest'
Black-eyed Susan 'Becky' Black-eyed Susan 'Cherokee Sunset'
Black-eyed Susan 'Chim Chiminee' Black-eyed Susan 'Cordoba'
Black-eyed Susan 'Double Gold' Black-eyed Susan 'Goldilocks'
Black-eyed Susan 'Indian Summer' Black-eyed Susan 'Irish Eyes'
Black-eyed Susan 'Marmalade' Black-eyed Susan 'Prairie Sun'
Black-eyed Susan 'Quilled Petals Mix' Black-eyed Susan 'Sonora'
Black-eyed Susan 'Spotlight' Black-eyed Susan 'Summer Light'
Black-eyed Susan 'Toto®' Black-eyed Susan 'Toto® Lemon'
Black-eyed Susan 'Toto® Rustic' Black-eyed Susan, Missouri
Blackfoot Daisy 'Blackie' Sweet Potato Vine
Black-Lipped Orchid 'Burfordiense' Black-stem
'Blackthorn' Hellebore: sterniihybrid