Blau

Aster ageratoides 'Blaukuppel'

Nepeta faassenii 'Junior Walker'

Aster 'Wood's Light Blue'

Agapanthus 'Blue Umbrella'

Viola reichenbachiana

Scilla sibirica 'Spring Beauty'

Salvia nemorosa 'Negrito'

Rosmarinus officinalis

Penstemon 'Sour Grapes'

Campanula portenschlagiana

Aconitum napellus

Ajuga reptans 'Mini Mahogany'

Nepeta 'Weinheim Big Blue'

Meehania urticifolia

Viola sororia 'Blue Diamond'

Iris versicolor

Myosotis palustris 'Thüringen'

Nepeta kubanica

Campanula portenschlagiana 'Catharina'

Iris sibirica 'Annick'

Iris sibirica 'Silver Edge'

Nepeta manchuriensis 'Manchu Blue'

Nepeta subsessilis 'Washfield'

Aster novi-belgii 'Schöne von Dietlikon'

Ajuga pyramidalis 'Metallica Crispa'

Viola odorata 'Königin Charlotte'

Veronica spicata 'Romiley Purple'

Symphytum grandiflorum 'Hidcote Blue'

Sisyrinchium angustifolium

Salvia nemorosa 'Tänzerin'

Salvia uliginosa

Salvia nemorosa 'Lubeca'

Leymus arenarius 'Blue Dune'

Iris sibirica 'Ego'

Geranium himalayense 'Irish Blue'

Festuca glauca 'Blauglut'

Echinops bannaticus 'Taplow Blue'

Aster novi-belgii 'Eventide'

Aconitum henryi 'Spark'

Lavandula angustifolia 'Cedar Blue'

Aster novae-angliae 'Guido en Gezelle'

Aster novae-angliae 'W. Bowman'

Aster novi-belgii 'Brigitte'

Aster novi-belgii 'Porzellan'

Campanula poscharskyana 'Frühlingszauber'

Fuchsia 'Delta's Sarah'

Kalimeris incisa 'Jürgen Wever'

Lavandula angustifolia 'Super Blue'

Phlox stolonifera 'Purpurea'

Aster 'Herbstpurzel'

Aster 'Azurro'

Aster 'Blauer Zwerg'

Nepeta subsessilis 'Purple Prelude'

Lobelia siphilitica 'Donker Blauw'

Aster 'Silberteppich'

Salvia nemorosa 'Dark Blue Marvel'

Salvia verticillata 'Endless Love'

Veronica gentianoides 'Variegata'

Campanula 'Birch Hybrid'

Festuca glauca 'Hoggar'

Phlox divaricata

Iris sibirica 'Aquarius'

Nepeta 'Joanna Reed'

Veronica gentianoides 'Pallida'

Veronica armena

Iris sibirica 'Caesar's Brother'

Eryngium variifolium

Aster frikartii 'Mönch'

Lavandula intermedia 'Fragrant Memories'

Nepeta faassenii 'Purrsian Blue'

Tradescantia 'Good Luck'

Tradescantia 'Mac's Double'

Tradescantia 'Ocean Blue'

Veronica 'Baby Blue'

Monarda 'Blue Moon'

Phlox divaricata 'Geddington Cross'

Agastache 'Spicey'

Aster thomsonii

Salvia officinalis 'Würzburg'

Iris sibirica 'Rosy Bows'

Festuca valesiaca 'Silbersee'

Veronicastrum virginicum 'Lavendelturm'

Veronica 'Madame Mercier'

Polemonium yezoense 'Purple Rain'

Helictotrichon sempervirens 'Saphirsprudel

Iris sibirica 'Kabluey'

Veronica austriaca 'Azurit'

Salvia nemorosa 'Rianne'

Campanula primulifolia

Kalimeris incisa 'Variaster'

Aster novi-belgii 'Blaue Nachhut'

Lavandula angustifolia 'Melissa Lilac'

Veronica spicata 'Blaufuchs'

Campanula 'Purple Sensation'

Salvia uliginosa 'African Skies'

Lavandula angustifolia 'Twickel Purple'

Iris ensata

Aster 'Treffpunkt'

Agastache 'Serpentine'

Veronicastrum virginicum 'Apollo'