'Blue & White' Iris: barbatus Blue Aloe
'Blue Angel (Blekitny Aniol)' Hybrid Clematis 'Blue Angel' Gentian Sage
'Blue Asterisk' Tall Bearded German Iris Blue Balsam Mint
Blue Beaked Yucca (spp.) 'Blue Bedder' Foothill Penstemon
'Blue Blazes' Hosta Blue 'Blue Shades'
'Blue Bouquet' Spike Speedwell 'Blue Boy' Hosta
Blue Bugleweed (spp.) 'Blue Butterfly' Dwarf Delphinium
'Blue Cadet' Hosta Blue Camas White
Blue Candle Blue Cap (spp.)
Blue Cap 'Blaukappe' Blue Cap 'Jade Frost'
Blue Cardinal Flower (spp.) Blue Cardinal Flower 'Blue Selection'
Blue Chalksticks Blue Clematis (spp.)
Blue Clematis 'Hanajina' Blue Clematis 'Rosea'
'Blue Clips' Tussock Bellfower Blue Corydalis 'China Blue'
Blue Cupidone (spp.) Blue Cupidone 'Cupid's Dart'
'Blue Cups' Hosta Blue Daisy (spp.)
Blue Daisy 'Read's Blue' Blue Daisy Variegated
'Blue Danube' Stokes' Aster 'Blue Dimples' Hosta
Blue Dogbane (spp.) Blue Euphorbia
'Blue Eyed Beauty' African Daisy: ecklonis Blue False Indigo
Blue Fan Flower (spp.) Blue Fescue 'Boulder Blue'
Blue Fescue 'Golden Toupee' Blue Finger
Blue Flame Blue Flax (spp.)
Blue Flax 'Nanum Sapphire' Blue Flax: lewisii
'Blue Fortune' Mexican Hyssop Blue Giant Hyssop 'Golden Jubilee'
Blue Ginger Blue Globe Onion
'Blue Glow' Globe Thistle Blue Grama Grass
Blue Grass 'Blue Lagoon' Verbena
Blue Lechuguilla Century Plant 'Blue Light' Blue Pimpernel
Blue Lilyturf (spp.) Blue Lilyturf 'Big Blue'
Blue Lilyturf 'Ever Green Giant' Blue Lilyturf 'Gold Band'
Blue Lilyturf 'John Burch' Blue Lilyturf 'Monroe White'
Blue Lilyturf 'Riegel's Big Blue' Blue Lilyturf 'Royal Purple'
Blue Lilyturf Variegated Blue Love Grass 'Wind Dancer'
Blue Lungwort (spp.) Blue Lyme Grass
Blue Marguerite (spp.) Blue Marguerite 'Read's Blue'
Blue Marguerite Variegated 'Blue Mirror' Dwarf Delphinium
'Blue Mirror' Tickseed Blue Mist Flower
Blue Monk's Hood 'Blue Moon' Blue Phlox
'Blue Moonlight' Tussock Bellfower 'Blue' Mountain Bluet
'Blue Mouse Ears' Hosta Blue Myrtle Cactus
Blue Oat Grass (spp.) Blue Oat Grass 'Sapphire'
Blue Oatgrass (spp.) Blue Oatgrass 'Sapphire'
'Blue Paradise' Summer Phlox Blue Pea
'Blue' Peach Leafed Bellflower Blue Phlox (spp.)
Blue Phlox 'Blue Moon' Blue Phlox Dwarf
Blue Phlox 'Montrose' Blue Pigmy
Blue Pimpernel 'Blue Light' Blue Plumbago
Blue Poppy (spp.) Blue Poppy 'Lingholm'
Blue Potato Bush (spp.) 'Blue Queen' Meadow Sage
'Blue Reverie' Siberian Iris Blue Ridge Wakerobin
Blue Sage Blue Salvia (spp.)
Blue Salvia 'Argent' Blue Salvia 'Signum'
Blue Salvia 'Strata' Blue Salvia 'Victoria Blue'
Blue Salvia: superbahybrid (spp.) Blue Salvia: superbahybrid 'Merleau'
Blue Sedge (spp.) Blue Sedge 'Blue Zinger'
'Blue Selection' Great Blue Lobelia 'Blue Shades' Blue
'Blue Shades' Columbine 'Blue Shamrock' Fan Flower
'Blue Sheen' Prostrate Speedwell 'Blue Showers' Water Hyssop
Blue Shrimp Blue Spiderwort
'Blue Spike' Grape Hyacinth 'Blue Spire' Russian Sage
'Blue Spruce' Reflexed Stonecrop Blue Star (spp.)
Blue Star, Arizona Blue Star, Eastern
Blue Star, Stiff Blue Star: tabernaemontana montana, Eastern
Blue Stem Grass (spp.) Blue Stem Grass 'The Blues'
Blue Stonecrop 'Angelina' Blue Stonecrop 'Blue Spruce'
Blue Succory (spp.) Blue Succory 'Cupid's Dart'
'Blue Sunrise' Hybrid Geranium Blue Throatwort
Blue Trumpet Vine 'Blue Umbrellas' Hosta
'Blue Uniform' Tussock Bellfower Blue Vine
'Blue Wedgewood' Hosta Blue Wild Indigo
Blue Wild Rye Grass 'Blue Wonder' Catmint
Blue Yucca 'Blue Zinger' Blue Sedge
Bluebell Barleria (spp.) Bluebell Barleria Variegated
Bluebell (spp.) Bluebell 'Olympica'
Bluebell, Mexican 'Katie Pink' Bluebell, Tufted
Bluebells Bluebells, Siberian
Bluebells, Spanish (spp.) Bluebells, Spanish 'White City'
Bluebunch Fescue (spp.) Bluebunch Fescue 'Siskiyou Blue'
Blue-eyed Grass (spp.) Blue-eyed Grass 'Rocky Point'
Blue-eyed Grass: angustifolium Blue-eyed Mary (spp.)
Blue-eyed Mary 'Joy Skies' Blue-eyed Mary 'Starry Eyes'
Blue-eyed Mary: verna (spp.) Blue-eyed Mary: verna White
Blueflag, Harlequin Bluegrass, Rough
Bluegrass, Rough-Stalk Bluestar (spp.)
Bluestar, Eastern (spp.) Bluestar, Large-Flowered
Bluet, Azure Bluet, Mountain (spp.)
Bluet, Mountain 'Blue' Bluet, Mountain 'Gold Bullion'
Bluet, Mountain Golden Bluet, Mountain White
Bluets