Blau

Aquilegia 'Mrs M. Nicholls'

Aquilegia vulgaris

Festuca glauca 'Elijah Blue'

Centaurea montana

Aster 'Lady in Blue'

Aquilegia alpina

Aster 'Mittelmeer'

Aster 'Barbados'

Viola sororia 'Dark Freckles'

Vinca major 'Variegata'

Vinca minor

Platycodon grandiflorus 'Mariesii'

Lavandula angustifolia 'Hidcote'

Lavandula angustifolia 'Munstead'

Geranium himalayense

Festuca glauca 'Blauglut'

Ceratostigma plumbaginoides

Calamintha nepeta

Agastache 'Black Adder'

Campanula persicifolia 'Grandiflora Coerulea'

Gentiana septemfida var. lagodechiana

Rosmarinus officinalis 'Corsican Blue'

Aquilegia 'Blue Barlow'

Echinops bannaticus 'Blue Glow'

Campanula lactiflora

Gentiana asclepiadea

Aconitum cammarum 'Arendsii'

Iris sibirica

Iris sibirica 'Aquarius'

Aster 'Zwergenhimmel'

Salvia nemorosa 'Viola Klose'

Anchusa officinalis

Rosmarinus officinalis 'Blue Rain'

Nepeta kubanica

Geranium sylvaticum 'Birch Lilac'

Aster 'Wood's Light Blue'

Festuca valesiaca 'Silbersee'

Vinca major

Veronica repens

Salvia nemorosa 'Caradonna'

Pulsatilla vulgaris

Nepeta faassenii 'Grol'

Kalimeris incisa 'Blue Star'

Agastache rugosa

Agastache 'Blue Fortune'

Aquilegia vulgaris 'Grandmother's Garden'

Nepeta faassenii 'Hill Grounds'

Platycodon grandiflorus 'Astra Blue'

Platycodon grandiflorus 'Hakone Blue'

Muscari botryoides 'Superstar'

Rosmarinus officinalis 'Miss Jessopp's Upright'

Veronica longifolia 'Blauriesin'

Festuca glauca 'Blaufuchs'

Ajuga reptans

Iris bulleyana

Gentiana dahurica

Scabiosa caucasica 'Perfecta'

Campanula portenschlagiana 'Liselotte'

Iris versicolor

Campanula pyramidalis

Geranium himalayense 'Baby Blue'

Aster novi-belgii 'Schöne von Dietlikon'

Viola odorata 'Königin Charlotte'

Rosmarinus officinalis

Iris sibirica 'Caesar's Brother'

Geranium himalayense 'Irish Blue'

Geranium 'Brookside'

Campanula lactiflora 'Prichard's Variety'

Aster sedifolius 'Nanus'

Aster novi-belgii 'Marie Ballard'

Aster novi-belgii 'Dauerblau'

Aster cordifolius 'Ideal'

Aster ericoides 'Blue Wonder'

Anchusa azurea 'Dropmore'

Anchusa azurea 'Loddon Royalist'

Ajuga reptans 'Atropurpurea'

Aster azureus

Aster novi-belgii 'Brigitte'

Lavandula intermedia 'Phenomenal'

Veronica longifolia 'Zoe'

Pulsatilla patens

Phlox 'Flame Pro Light Blue'

Lavandula intermedia 'Sensational'

Nepeta subsessilis 'Purple Prelude'

Geranium 'Terre Franche'

Viola elatior

Campanula 'Purple Sensation'

Tradescantia 'J.C. Weguelin'

Geranium pratense

Iris sibirica 'Kaboom'

Iris sibirica 'Rosy Bows'

Tradescantia 'Purewell Giant'

Scabiosa caucasica 'Fama'

Tradescantia 'Zwanenburg Blue'

Salvia uliginosa

Nepeta 'Veluw's Blauwtje'

Iris sibirica 'Ego'

Geranium ibericum

Geranium magnificum 'Anemoniflorum'

Eryngium variifolium