Vaste planten

Brunnera macrophylla

Brunnera macrophylla 'Variegata'

Campanula glomerata 'Superba'

Centaurea montana 'Coerulea'

Ceratostigma plumbaginoides

Digitalis purpurea 'Excelsior Hybrids'

Echinops ritro 'Veitch's Blue'

Eryngium planum

Eryngium planum 'Blauer Zwerg'

Geranium clarkei 'Kashmir Purple'

Geranium himalayense

Geranium magnificum

Geranium sylvaticum 'Birch Lilac'

Iris ensata

Iris sibirica 'Blue King'

Lavandula angustifolia 'Dwarf Blue'

Lavandula angustifolia 'Munstead'

Nepeta sibirica 'Souvenir d'André Chaudron'

Polemonium caeruleum

Primula denticulata 'Rubin'

Salvia nemerosa 'Blaukönigin'

Salvia nemerosa 'Mainacht'

Salvia nemerosa 'Ostfriesland'

Salvia officinalis 'Aurea'

Salvia officinalis 'Purpurascens'

Salvia officinalis 'Tricolor'

Sisyrinchium angustifolium

Veronica longifolia 'Blauriesin'

Vinca major

Vinca major 'Variegata'