Perennials: Blue - Blue (256)
Blue & White Iris: barbatus
Blue Aloe
Blue Angel Gentian Sage
Blue Angel Hosta
Blue Anise Sage Black and Blue
Blue Anise Sage Costa Rica
Blue Anise Sage Kobalt
Blue Asterisk Tall Bearded German Iris
Blue Balsam Mint
Blue Beaked Yucca (spp.)
Blue Bedder Foothill Penstemon
Blue Bird (Songbird Series) Columbine
Blue Blazes Hosta
Blue Blue Shades
Blue Bottle Blue Midget
Blue Bottle Florence Mix
Blue Bottle Garnet
Blue Bouquet Spike Speedwell
Blue Boy Hosta
Blue Bugleweed (spp.)
Blue Butterfly Dwarf Delphinium
Blue Cadet Hosta
Blue Camas (spp.)
Blue Camas White
Blue Candle
Blue Cap (spp.)
Blue Cap Blaukappe
Blue Cap Jade Frost
Blue Cap Tetra Petra
Blue Cardinal Flower (spp.)
Blue Cardinal Flower Blue Selection
Blue Chalksticks
Blue Clematis (spp.)
Blue Clematis Hanajina
Blue Clematis Rose Colored Glasses
Blue Clematis Rosea
Blue Clips Tussock Bellfower
Blue Cohosh
Blue Corydalis China Blue
Blue Corydalis Purpurea
Blue Cupidone (spp.)
Blue Cupidone Cupid's Dart
Blue Cups Hosta
Blue Daisy (spp.)
Blue Daisy Read's Blue
Blue Daisy Variegated
Blue Daisy: amoena
Blue Danube Stokes' Aster
Blue Dart Mangave
Blue Devil
Blue Dimples Hosta
Blue Dogbane (spp.)
Blue Dogbane Blue Ice
Blue Dogbane White
Blue Emperor Aubrietia
Blue Ensign Dwarf Morning Glory
Blue Euphorbia
Blue Eyed Beauty African Daisy: ecklonis
Blue False Indigo
Blue Fan Flower (spp.)
Blue Fan Flower Blue Flash
Blue Fan Flower Blue Ice
Blue Fan Flower Blue Sky
Blue Fan Flower Outback Purple Fan
Blue Fan Flower Outback White
Blue Fescue Blausilber (Blue Silver)
Blue Fescue Boulder Blue
Blue Fescue Golden Toupee
Blue Fescue Seeigel (Sea Urchin)
Blue Finger
Blue Flag
Blue Flame
Blue Flash Creeping Scaevola
Blue Flax (spp.)
Blue Flax Nanum Sapphire
Blue Flax Sapphire
Blue Flax: lewisii
Blue Fortune Hummingbird Mint
Blue Giant Hyssop Golden Jubilee
Blue Ginger
Blue Globe Onion
Blue Glow Century Plant: Agave
Blue Glow Globe Thistle
Blue Gown New York Aster
Blue Grama Grass
Blue Grass
Blue Haze New Zealand Bur
Blue Ice Bluestar
Blue Ice Creeping Scaevola
Blue Jay (Songbird Series) Columbine
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 Marguerite: amoena
Blue Midget Cornflower
Blue Mirror Dwarf Delphinium
Blue Mirror Tickseed
Blue Mistflower
Blue Monk's Hood
Blue Moon Blue Phlox
Blue Moonlight Tussock Bellfower
Blue Mountain Bluet
Blue Mouse Ears Hosta
Blue My Mind Evolvulus
Blue Myrtle Cactus
Blue Oat Grass (spp.)
Blue Oat Grass Sapphire
Blue Oatgrass (spp.)
Blue Oatgrass Sapphire
Blue Pacific Summer Snapdragon
Blue Paradise Garden Phlox
Blue Pea
Blue Peach Leafed Bellflower
Blue Pearl Golden Crocus
Blue Pearl Madagascar Periwinkle
Blue Phlox (spp.)
Blue Phlox Blue Moon
Blue Phlox Dwarf
Blue Phlox Eco Brillant
Blue Phlox May Breeze
Blue Phlox Montrose
Blue Pigmy
Blue Pimpernel Blue Light
Blue Pincushion
Blue Plumbago
Blue Poppy (spp.)
Blue Poppy Lingholm
Blue Potato Bush (spp.)
Blue Potato Vine
Blue Princess Clump Verbena
Blue Queen Meadow Sage
Blue Reverie Siberian Iris
Blue Ribbon China Aster
Blue Ridge Wakerobin
Blue Sage
Blue Salvia (spp.)
Blue Salvia Argent
Blue Salvia Reference
Blue Salvia Rhea
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 Shadows Grecian Windflower
Blue Shamrock Fan Flower
Blue Sheen Prostrate Speedwell
Blue Showers Water Hyssop
Blue Shrimp
Blue Shrimp Plant Golden
Blue Shrimp Plant Purpurascens
Blue Sky Creeping Scaevola
Blue Spiderwort
Blue Spike Grape Hyacinth
Blue Spire Russian Sage
Blue Spruce Reflexed Stonecrop
Blue Star Alpine Sea Holly
Blue Star Grecian Windflower
Blue Star (spp.)
Blue Star White Heath Aster
Blue Star Blue Ice
Blue Star White
Blue Star, Arizona
Blue Star, Creeping Georgia Pancake
Blue Star, Eastern
Blue Star, Stiff
Blue Star: tabernaemontana montana, Eastern
Blue Steeple Viper's Bugloss
Blue Stem Grass (spp.)
Blue Stem Grass The Blues
Blue Succory (spp.)
Blue Succory Cupid's Dart
Blue Sue Wandering Jew
Blue Sunrise Hybrid Geranium
Blue Throatwort
Blue Trumpet Vine (spp.)
Blue Trumpet Vine Variegata
Blue Umbrellas Hosta
Blue Uniform Tussock Bellfower
Blue Vervain
Blue Vine
Blue Vision Hosta
Blue Wedgewood Hosta
Blue Wild Indigo
Blue Wild Rye Grass
Blue Wonder Catmint
Blue Yucca
Blue Zinger Blue Sedge
Bluebeard Lily
Bluebeard: borealis
Bluebell Barleria (spp.)
Bluebell Barleria Variegated
Bluebell (spp.)
Bluebell Olympica
Bluebell, English
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 Devon Skies
Blue-eyed Grass (spp.)
Blue-eyed Grass Variegatum
Blue-eyed Grass: bellum (spp.)
Blue-eyed Grass: bellum Rocky Point
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
Bluemont Snow Evergreen Candytuft
Bluestar (spp.)
Bluestar Blue Ice
Bluestar White
Bluestar, Eastern (spp.)
Bluestar, Eastern Blue Ice
Bluestar, Eastern White
Bluestar, Large-Flowered
Bluestem, Silver Black Mountain
Bluestem, Split Black Mountain
Bluestem, Splitbeard Black Mountain
Bluet, Azure
Bluet, Mountain (spp.)
Bluet, Mountain Blue
Bluet, Mountain Gold Bullion
Bluet, Mountain Golden
Bluet, Mountain White
Bluetenwunder Maiden Grass
Bluets
Blueweed