Blunt Leaf Peperomia (spp.) Blunt Leaf Peperomia Variegated
Blunt Lobed Woodsia Fern Blunt Panic Grass (spp.)
Blunt Panic Grass 'Dallas Blues' Blunt Panic Grass 'Haense Hermes'
Blunt Panic Grass 'Heavy Metal' Blunt Panic Grass 'Rotstrahlbusch'
'Blushing Beauty' Ornamental Chili Pepper 'Blushing Brides' English Larkspur
Blushing Bromeliad Blushing Bromeliad: fulgens
Boar Thistle Boat Lily (spp.)
Boat Lily 'Nana Tricolor' 'Bobo Blue' Forget-me-not
Bocconia Bog Lily
Bog Sage Bog Salvia
Bog Wintergreen Bokhara Tulip
Bolax 'Bolivian Sunset' Gloxinia
Boltonia, Aster-Like 'Pink Beauty' Boltonia, Aster-Like 'Snowbank'
Boltonia, Aster-Like 'Snowflake' 'Bombay Purple' Crested Celosia
'Bombay Yellow Gold' Crested Celosia 'Bon Bon Apricot' Pot Marigold
'Bon Bon Orange' Pot Marigold 'Bon Bon Yellow' Pot Marigold
'Bonanza Bolero' French Marigold 'Bonanza' Daylily
'Bonanza' Garden Petunia 'Bonanza' Hybrid Tulip
Boneset, American Boneset, White
'Bonnie Barbara Allen' Daylily 'Bonnie' Florist's Chrysanthemum
'Bonny Blue' Bushy Aster Boothill Eupatorium
Borage Borage, Country (spp.)
Border Carnation (spp.) Border Grass (spp.)
Border Grass 'Big Blue' Border Grass 'Ever Green Giant'
Border Grass 'Gold Band' Border Grass 'John Burch'
Border Grass 'Monroe White' Border Grass 'Riegel's Big Blue'
Border Grass 'Royal Purple' Border Grass Variegated
'Border Jewel' Knotweed Border Pink (spp.)
Border Pink 'Hoffman's Red' 'Border Princess' Dahlia
'Borisii' Avens Boston Fern (spp.)
Boston Fern 'Bostoniensis' Boston Fern 'Crispa'
Boston Fern 'Dallas' Boston Fern 'Fluffy Ruffles'
Boston Fern Golden Boston Fern 'Kimberly Queen'
Boston Fern 'Portor's Rossevelt' 'Bostoniensis' Boston Fern
Botrivier Protea (spp.) Botrivier Protea 'Red Baron'
Botta's Clarkia Bottle Gentian
Bottle Palm Bottle Tree
Bottlebrush, Japanese (spp.) Bottlebrush, Japanese 'Lemon Splash'
'Bou de Feu' Mallow 'Boughton Beauty' Hellebore: sterniihybrid
'Boulder Blue' Blue Fescue Bouncing Bet (spp.)
Bouvardia, Scarlet 'Bowle's Variety' Common Periwinkle
Bowman's Root (spp.) Bowman's Root White
Bowman's Root: trifoliata Bowman's Root: virginicum sibericum
Bracken Bracken Fern
Brake Fern (spp.) Brake Fern 'Evergemiensis'
Brake Fern 'Victoriae' Brake Fern: aquilinum
Brake Fern: falcata Bramble
Bramble, Arctic Bramble, Crimson
Brambles: rotundifolia 'Brandywine' Garden Canna
'Brandywine' Heartleaf Foamflower