Acanthus spinosus

Achillea millefolium 'Ortel's Rose'

Achillea 'Moonshine'

Aconitum carmichaelii 'Arendsii'

Acorus gramineus 'Argenteostriatus'

Adenophora 'Amethyst'

Aegopodium podagraria 'Variegatum'

Agastache barberi 'Tuitti Fruitti'

Agastache 'Black Adder'

Agastache 'Purple Haze'

Ajuga reptans 'Black Scallop'

Alchemilla mollis

Allium thunbergii 'Ozawa'

Ampelopsis brev. 'Elegans'

Amsonia 'Blue Ice'

Amsonia hubrichtii

Anemone hybrida (x) 'Honorine Jobert'

Anemone hupehensis 'September Charm'

Anemone sylvestris

Anemonella thalictroides

Anthriscus sylvester 'Ravenswing'

Aquilegia canadensis 'Little Lanterns'

Aquilegia x caerulea 'Origami Blue & White'

Aquilegia caerulea 'Origami Mix

Asarum splendens

Asclepias tuberosa

Aster cordifolius

Aster ericoides ‘Snow Flurry’

Aster laevis 'Bluebird'

Aster oblongifolius 'Raydon's Favorite'

Asteromoea mongolica

Astilbe chinensis 'Pumila'

Astilbe 'Deutschland'

Astilbe 'Montgomery'

Astilbe 'Peach Blossom'

Astilbe 'Straussenfeder' (Ostrich Plume)

Astilbe 'Queen of Holland'

Aubrieta 'Whitewell Gem'

Baptisia 'Purple Smoke'

Baptisia alba (lactea)

Baptisia x variicolor 'Twilight Prairie Blues'

Belamcanda chinensis

Bergenia 'Bressingham Ruby'

Boltonia asteroides 'Pink Beauty'

Boltonia asteroides 'Snow Bank'

Brunnera macrophylla

Brunnera macrophylla 'Jack Frost'

Buddleia 'Nanho Purple'

Buddleia ‘White Ball’

Caenothus x. pallidus 'Marie Simon'

Callirhoe involucrata

Campanula carpatica 'Blue Clips'

Campanula glomerata 'Superba'

Campanula portenschlagiana

Campanula poscharskyana

Campanula portenshlagiana 'Birch Hybrid'

Caryopteris 'First Choice'

Caryopteris divaricata 'Snow Fairy'

Centaurea montana

Chelone lyonii 'Hot Lips'

Cimmicifuga ramosa 'Brunette'

Clematis 'Jackmanii'

Clematis 'Ramona'

Clematis 'Blue Ravine'

Clematis 'Crystal Fountain'

Clematis maximowicziana

Clematis 'Silver Moon'

Clematis tangutica

Clematis viticella 'Betty Corning'

Clematis 'Warsaw Nike'

Coreopsis grandiflora 'Sunray'

Coreopsis verticillata 'Zagreb'

Coreopsis 'Creme Brulee'

Coreopsis 'Jethro Tull'

Coreopsis x 'Limerock Ruby'

Corydalis 'Blackberry Wine'

Crocosmia 'Lucifer'

Delosperma floribundum

Delosperma nubigenum

Delphinium elatum 'Royal Aspirations'

Dianthus gratianopolitanus 'Firewitch'

Disporum sessile 'Variegatum'

Echinacea purpurea 'Magnus'

Echinacea purpurea 'Razzmatazz'

Echinacea purpurea 'White Swan'

Echinacea 'Art's Pride' Orange Meadowbrite

Echinacea 'Harvest Moon'

Echinacea 'Mango Meadowbrite'

Echinacea 'Pink Double Delight'

Echinacea purpurea 'Fragrant Angel'

Echinacea 'Sunrise'

Echinacea 'Sunset'

Echinacea tennesseensis 'Rocky Top'

Epimedium rubrum (x)

Epimedium grandiflorum 'Lilafee'

Epimedium youngianum (x) 'Roseum'

Equisetum hyemale

Eryngium planum 'Sapphire Blue'

Eryngium yuccifolium

Eupatorium colestinum

Eupatorium dubium 'Little Joe'

Eupatorium maculatum 'Purple Bush'

Eupatorium maculatum 'Gateway'

Euphorbia amygdaloides robbiae

Euphorbia dulcis 'Chameleon'

Euphorbia amygdaloides 'Purpurea'

Filipendula 'Kakome'

Filipendula rubra 'Venusta'

Fragaria 'Lipstick'

Gaillardia 'Arizona Sun'

Gaillardia 'Fanfare

Galium odoratum

Gentiana clausa

Gentiana makinoi 'Marsha'

Gentiana scabra 'Zuikorindo'

Geramium maculatum

Geranium cantabrigiense (x) 'Karmina'

Geranium 'Rozanne'

Geranium 'Dilys'

Geranium macrorrhizum

Geranium phaeum

Geranium phaeum

Geranium phaeum 'Samobor'

Geranium sanguineum striatum

Geum 'Flames of Passion'

Helenium flexuosum 'Tiny Dancer'

Helianthus salicifolius 'First Light'

Helianthus angustifolius 'Gold Lace'

Helianthus x multiflorus 'Capenoch Star'

Heliopsis helianthoides 'Summer Sun'

Heliopsis helianthoides 'Summer Nights'

Helleborus [purple]

Helleborus argutifolius

Helleborus ericsmithii (x)

Helleborus foetidus

Helleborus foetidus

Helleborus orientalis

Helleborus x hybridus

Hellebours foetidus

Hellebours orientalis

Hemerocallis 'Bertie Ferris'

Hemerocallis 'Catherine Woodbury'

Hemerocallis 'Daring Deception'

Hemerocallis 'Green Flutter'

Hemerocallis 'Prairie Blue Eyes'

Hemerocallis 'Ruby Throat'

Hemerocallis 'Alabama Jubilee'

Hemerocallis 'Always Afternoon'

Hemerocallis 'Chicago Apache'

Hemerocallis 'Rose Emily'

Hemerocallis 'Siloam Amazing Grace'

Hemerocallis 'South Seas'

Hemerocallis 'Stella de Oro'

Hemerocallis 'Strutter's Ball'

Hemerocallis 'Sunday Gloves'

Heuchera tiramisu

Heuchera 'Velvet Night'

Heuchera villosa 'Miracle'

Heuchera 'Frosted Violet'

Hibiscus 'Kopper King'

Hibiscus moscheutos (palustris)

Hibiscus x 'Crown Jewels'

Hosta 'Blue Angel'

Hosta 'Sun Power'

Hosta 'Blue Blazes'

Hosta 'Crested Surf'

Hosta 'Ginko Craig'

Hosta 'Guacamole'

Hosta montana 'Aureomarginata'

Hosta 'Night Before Christmas'

Hosta 'Revolution'

Hosta 'Sagae'

Hosta 'Sea Octopus'

Hosta 'Shade Fanfare'

Hosta 'Stained Glass'

Hosta 'Striptease'

Houttuynia cordata 'Chameleon'

Hypericum androsaemum 'Albury Purple

Hypericum 'Gemo'

Iberis sempervirens 'Alexanders White'

Iris pseudacorus

Iris ensata 'Rose Queen'

Iris tectorum

Lamium maculatum 'Shell Pink'

Leptinella squalida

Leptodermis oblonga

Lespedeza thunbergii 'Gibraltar'

Leucanthemum 'Becky'

Leucanthemum 'Snowcap'

Lewisia longipetala 'Little Plum'

Liatris spicata

Liguilaria s. 'The Rocket'

Lobelia 'Ruby Slippers'

Lobelia cardinalis

Lobelia cardinalis ‘Fried Green Tomatoes’

Lonicera 'Mandarin'

Lonicera sempervirens 'Alabama Crimson'

Lychnis coronaria

Mertensia virginica

Microbiota decussata

Nepata subsessillis 'Cool Cat'

Nepeta faassenii 'Walker's Low'

Oenothera 'Cold Crick'

Ophiopogon planiscapus 'Arabicus'

Origanum laevigatum 'Herrenhausen'

Origanum rotundifolium 'Kent Beauty'

Orostachys furusei

Penstemon digitalis 'Husker Red'

Persicaria polymorpha

Persicaria 'Red Dragon'

Phlox 'Franz Schubert'

Phlox stolonifera 'Blue Ridge'

Platycodon grandiflorus 'Fuji Blue'

Pleioblastus pygmaeus

Pleioblastus variegatus

Polemonium 'Stairway to Heaven'

Pulmonaria 'Excalibur'

Pulmonaria 'Trevi Fountain'

Pulsatilla vulgaris 'Blaue Glocke'

Pycanthemum muticum

Rhexia mariana

Rudbeckia fulgida fulgida

Rudbeckia maxima

Rudbeckia subtomentosa 'Henry Eilers'

Ruschia pulvinaris

Sagina subulata

Salvia nemorosa 'Carradonna'

Salvia nemorosa 'May Night'

Salvia pratensis 'Evelyn'

Schizophragma hydrangeoides 'Moonlight'

Sedum 'Bertram Anderson'

Sedum cauticola 'Lidakense'

Sedum 'Gold Mound'

Sedum 'Matrona'

Sedum 'Neon'

Sedum sieboldii

Sedum 'Vera Jameson'

Sedum album

Sedum 'Angelina'

Sedum 'Blue Spruce'

Sedum hispanicum minus purple form

Sedum reflexum

Sempervivum -cvs-

Senecio aureus

Silene caroliniana 'Short and Sweet'

Silphium connatum

Silphium perfoliatum

Spigelia marilandica

Spirea ‘Ogon’

Stephanandra incisa 'Crispa'

Stokesia laevis 'Honeysong Purple'

Stokesia 'Purple Parasole's'

Stylophorum diphyllum

Syneilesis aconitifolia

Thalictrum aquilegifolium 'Thunder Cloud'

Thalictrum rochebrunianum 'Lavender Mist'

Thermopsis caroliniana

Thymus praecox 'Coccineus'

Tiarella 'Spring Symphony'

Tiarella 'Running Tapestry'

Tradescantia 'Billberry Ice'

Tradescantia 'Purple Profusion'

Tradescantia 'Sweet Kate'

Tricyrtis formosana 'Samurai'

Tricyrtis 'Sinonome'

Uvularia grandiflora

Verbena bonariensis

Vernonia glauca

Vernonia noveboracensis

Veronica 'Tickled Pink'

Weigela florida 'Elvera' (Midnight Wine)

Yucca filamentosa 'Bright Edge'

Yucca filamentosa 'Color Guard'

Arundo donax

Arundo donax 'Variegata'

Calamagrostis acutiflora (x) 'Karl Foerster'

Calamagrostis 'Avalanche'

Calamagrostis brachytricha

Carex caryophyllea 'The Beatles'

Carex conica 'Snowline' ('Variegata')

Carex conica 'Snowline' ('Variegata')

Carex dolichostachya 'Kaga Nishiki'

Carex elata 'Aurea' ('Bowles' Golden')

Carex flacca [Carex glauca]

Carex flaccosperma

Carex grayi

Carex hachijoensis 'Evergold'

Carex laxiculmis 'Hob' Bunny Blue' [native]

Carex morrowii 'Goldband'

Carex morrowii 'Ice Dance'

Carex morrowii 'Silver Sceptre'

Carex muskingumensis 'Little Midge'

Carex muskingumensis 'Oehme'

Carex pensylvanica

Carex platyphylla

Carex siderosticha 'Variegata'

Carex siderosticha 'Island Brocade'

Carex grayi

Chasmanthium latifolium

Cortaderia selloana

Deschampsia cespitosa

Elymus hysterix (Hystrix patula)

Festuca glauca 'Elijah Blue'

Hakonechloa macra

Hakonechloa macra 'Albo Striata'

Hakonechloa macra 'Aureola'

Hakonechloa macra 'All Gold'

Helictotrichon sempervirens

Imperata cylindrica 'Red Baron'

Juncus effusus

Juncus effusus 'Unicorn'

Leymus arenarius 'Blue Dune' (Elymus arenarius)

Luzula acuminata

Miscanthus sinensis 'Gracillimus'

Miscanthus sinensis 'Graziella'

Miscanthus sinensis 'Morning Light'

Miscanthus sinensis 'Strictus'

Miscanthus sinensis var. condensatus 'Cabaret'

Miscanthus sinensis 'Variegatus'

Miscanthus sinensis

Miscanthus sinensis var. condensatus 'Cosmopolitan'

Molinia arundinacea 'Skyracer'

Molinia caerulea 'Variegata'

Muhlenbergia capillaris

Panicum amarum 'Dewey Blue'

Panicum virgatum 'Dallas Blue'

Panicum virgatum 'Heavy Metal'

Panicum virgatum 'North Wind'

Panicum virgatum 'Prairie Fire'

Pennisetum alopecuroides

Pennisetum alopecuroides 'Hameln'

Pennisetum alopecuroides 'Little Bunny'

Pennisetum alopecuroides 'Moudry'

Pennisetum orientale

Pennisetum setaceum 'Rubrum'

Phalaris arundinacea 'Feesey'

Phalaris arun. 'Strawberries and Cream'

Saccharum ravennae [Erianthus ravennae]

Schizacharium scoparium 'The Blues'

Sorghastrum nutans 'Sioux Blue'

Sporobolus heterolepis

Athyrium ang. 'Lady in Red'

Athyrium niponicum 'Pictum'

Athyrium niponicum 'Ursula's Red'

Blechnum spicant

Dryopteris erythrosora 'Brilliance'

Dryopteris filix-mas 'Undulata Robusta'

Matteuccia struthiopteris

Osmunda cinnamomea

Osmunda regalis

Polystichum acrostichoides

Polystichum polyblepharum

Asarum maximum

Fallopia japonica 'Variegata'

Hydrangea macrophylla 'All Summer Beauty'

Hydrangea macrophylla 'Fasan'

Hydrangea macrophylla 'Niko Blue'

Hydrangea macrophylla 'Penny Mac'

Hydrangea paniculata 'Limelight'

Itea virginica 'Little Henry'

Physocarpus 'Summer Wine'

Rosa 'Blushing Knock Out'

Rosa 'Double Knock Out'

Rosa 'Knock Out'

Rosa 'Pink Knock Out'

Rosa 'The Fairy'