Iris pumila 'Little Shadow'

Iris setosa

Iris siberica 'Butter and Sugar'

Iris sibirica 'Chilled Wine'

Iris sibirica 'Gull's Wing'

Iris sibirica 'Paprikash'

Knautia 'Thunder & Lightning'

Kniphofia 'Glowstick'

Kniphofia 'Lemon Popsicle'

Kniphofia 'Mango Popsicle'

Kniphofia 'Papaya Popsicle'

Kniphofia 'Poco Red'

Kniphofia 'Royal Castle' mixture

Kniphofia pyromania 'Backdraft'

Lavandula 'Anouk Purple Flare'

Lavandula 'Vintro Big Blue'

Lavandula angustifolia 'Hidcote Blue'

Lavandula angustifolia 'Superblue'

Lavandula stoechas 'Bandera Deep Purple'

Lavandula stoechas 'Madrid Blue Ipd'

Lavandula x intermedia 'Grosso'

Lavandula x intermedia 'Provence'

Leucanthemum 'Double Angel'

Leucanthemum 'Silver Princess'

Leucanthemum x superbum 'Snowdrift'

Liatris spicata 'Floristan White'