Alyssum saxatile
Dianthus plumarius 'Cheryl'
Dianthus plumarius 'Doris'
Digitalis purpurea 'Alba'
Digitalis purpurea 'Excelsior'
Helleborus niger
Pennisetum alopecuroides 'Hameln'
Phlox paniculata 'Danielle'
Phlox paniculata 'Uspech'
Phlox x arendsii 'Pink Attraction'
Sedum spectabile 'Carl'