Blau

Rosmarinus officinalis 'Blaulippe'

Salvia reptans 'West Texas'

Salvia uliginosa 'Ballon Azul'

Aster cordifolius 'Blue Heaven'

Salvia nemorosa 'Heaven in Blue'

Viola odorata 'Miracle Classy Blue'

Viola odorata 'Miracle Intense Blue'

Rosmarinus officinalis 'Benenden Blue'

Phlox 'Donau'

Veronica gentianoides 'Maihimmel'

Geranium 'Alan Mayes'

Cynara scolymus 'Cardy'

Iris setosa

Veronica 'First Glory'

Veronica longifolia 'Dark Maetje'

Tricyrtis 'Blue Wonder'

Perovskia atriplicifolia 'Lacey Blue'

Iris bulleyana

Geranium sylvaticum 'Birch Lilac'

Geranium sylvaticum 'Bridget Lion'

Aster laevis 'Anneke van der Jeugd'

Salvia greggii 'Blue Note'

Iris sibirica 'Silver Edge'

Erigeron 'Sommerabend'

Salvia verticillata 'Hannay's Blue'

Pulmonaria longifolia 'E.B. Anderson'

Perovskia atriplicifolia 'Little Spire'

Liriope muscari 'Moneymaker'

Festuca glauca 'Golden Toupee'

Eryngium bourgatii

Erigeron 'Dunkelste Aller'

Amsonia hubrechtii

Ruellia humilis

Veronica longifolia 'Blue John'

Penstemon strictus

Pulmonaria angustifolia 'Mawson's Variety'

Salvia microphylla 'Blue Monrovia'

Isodon longitubus

Isodon rubescens

Isodon umbrosus 'Dark Form'

Aster spectabilis 'Macho Blue'

Iris sibirica 'Blaue Milchstrasse'

Lavandula intermedia 'Sensational'

Iris sibirica 'Niklassee'

Caryopteris clandonensis 'Emerald Crest'

Amsonia tabernaemontana 'Stella Azul'

Veronica 'Blue Indigo'

Adenophora 'Gaudi Violet'

Amsonia tabernaemontana 'Blue Ice'

Iris pumila 'Truly'

Geranium 'Philippe Vapelle'

Eryngium planum 'Blauer Zwerg'

Ceratostigma griffithii

Aster thomsonii 'Nanus'

Agastache 'Beelicious Purple'

Salvia 'Feathers Peacock'

Amsonia illustris

Perovskia atriplicifolia 'Silvery Blue'

Malva sylvestris 'Dema' (Marina)

Baptisia australis

Iris sibirica 'Himmel von Komi'

Iris sibirica 'Fran's Gold'

Salvia 'Carina'

Veronica 'First Match'

Veronica spicata 'Royal Candles'

Clematis integrifolia 'Blue Ribbons'

Iris laevigata 'Schwarzer See'

Geranium 'Lakwijk Star'

Pulmonaria longifolia 'Roy Davidson'

Amsonia ciliata 'Halfway to Arkansas'

Caryopteris divaricata 'Snow Fairy'

Pulmonaria saccharata 'Blue Mist'

Veronicastrum sibiricum 'Lapislazuli'

Veronicastrum sibiricum 'Okamoto'

Iris ensata 'Light at Dawn'

Meehania urtidifolia 'Japanblau'

Veronicastrum sachalinense 'Manhattan Skyline'

Veronicastrum sibiricum 'Kobaltkaars'

Caryopteris incana

Pulmonaria longifolia 'Diana Clare'

Geranium wlassovianum 'Typ Crug Farm'

Geranium 'Blue Cloud'

Clematis heracleifolia 'Cote d'Azur'

Hosta 'Powder Blue'

Brunnera macrophylla 'Attractive'

Corydalis elata 'Spinners'

Hepatica nobilis

Amsonia 'Ernst Pagels'

Stokesia laevis 'Peachie's Pick'

Corydalis 'Craigton Blue'

Pulmonaria 'Trevi Fountain'

Agapanthus 'Tornado'

Pulmonaria 'Majesté'

Pulmonaria 'Samurai'

Polemonium caeruleum 'Brise d'Anjou'

Polemonium caeruleum 'Northern Lights'

Polemonium 'Stairway to Heaven'

Salvia 'Azure Snow'

Polemonium caeruleum 'Hopleys'

Pulmonaria 'Spot On'