Lila

Monarda 'Petite Delight'

Monarda 'Prärienacht'

Lysimachia atropurpurea

Kalimeris incisa 'Blue Star'

Hosta 'Aureomarginata'

Geranium sanguineum 'Aviemore'

Geranium macrorrhizum 'Bevan's Variety'

Geranium cantabrigiense 'Karmina'

Aster ageratoides 'Adustus Nanus'

Digitalis purpurea 'Monstrosa'

Salvia officinalis 'Grower's Friend'

Mentha suaveolens 'Variegata'

Monarda 'Blue Moon'

Phlox 'Lachsjuwel'

Thymus longiflorus

Meehania urticifolia

Phlox 'Franz Schubert'

Viola sororia 'Blue Diamond'

Aster 'Barbados'

Mentha piperita 'Grapefruit'

Lunaria annua

Galega officinalis

Aster ageratoides 'Eleven Purple'

Phlox 'Drummond Pink'

Mentha 'Aalbes'

Lavandula intermedia 'Dutch'

Calamintha grandiflora

Aster novi-belgii 'Sarah Ballard'

Viola cornuta 'Victoria's Blush'

Physostegia virginiana 'Red Beauty'

Nepeta subsessilis

Kalimeris incisa 'Charlotte'

Veronica prostrata 'Mrs Holt'

Stachys grandiflora 'Superba'

Rosmarinus officinalis 'Corsican Blue'

Nepeta racemosa 'Little Titch'

Mentha piperita 'Eau de Cologne'

Hosta 'Undulata Mediovariegata'

Hosta 'Blue Mouse Ears'

Hosta fortunei 'Albopicta'

Hosta 'Halcyon'

Geranium sanguineum 'New Hampshire Purple'

Geranium macrorrhizum 'Olympos'

Fuchsia 'Riccartonii'

Eupatorium maculatum 'Atropurpureum'

Calamintha nepeta 'Lila Riese'

Astilbe 'Henny Graafland'

Achillea millefolium 'Lilac Beauty'

Achillea millefolium 'Pretty Belinda'

Centaurea phrygia

Aster ageratoides 'Blaukuppel'

Dianthus amurensis

Mentha gentilis

Mentha spicata 'Weinminze'

Mentha spicata 'Zitronenminze'

Pulsatilla patens

Hosta 'Bressingham Blue'

Mentha spicata var. crispa 'Nana'

Mentha gentilis 'Citrata'

Mentha 'Hillary's Sweet Lemon'

Veronica prostrata 'Spode Blue'

Lavandula intermedia 'Provence'

Stachys officinalis 'Ukkie'

Salvia officinalis 'Grete Stölzle'

Penstemon 'Alice Hindley'

Viola odorata 'Königin Charlotte'

Stachys byzantina 'Silver Carpet'

Geranium palustre

Dianthus gratianopolitanus 'Dinetta Purple'

Iberis sempervirens 'Absolutely Amethyst'

Aster 'Augenweide'

Mentha requienii

Liatris pycnostachya

Monarda bradburiana 'Maramek'

Teucrium lucidrys 'Pain de Sucre'

Monarda bradburiana

Iris sibirica 'Rosy Bows'

Allium schoenoprasum 'Rising Star'

Tricyrtis formosana 'Gilt Edge'

Tradescantia 'Purewell Giant'

Phlox divaricata laphamii

Phlox 'Elizabeth Arden'

Nepeta kubanica

Nepeta 'Purple Haze'

Aster macrophyllus 'Twilight'

Anemone tomentosa 'Septemberglanz'

Agastache 'Purple Haze'

Nepeta manchuriensis 'Manchu Blue'

Nepeta subsessilis 'Washfield'

Phlox divaricata

Aster novi-belgii 'Schöne von Dietlikon'

Erysimum 'Red Jep'

Primula 'Groenekan's Glorie'

Tricyrtis formosana 'Purple Beauty'

Tricyrtis hirta 'Miyazaki'

Tricyrtis hirta 'Taiwan Adbane'

Tradescantia 'Billberry Ice'

Tradescantia 'Little Doll'

Tradescantia 'Red Grape'

Teucrium chamaedrys 'Nanum'