Clematis tangutica
Helleborus orientalis 'Rhodé'
Pinus mugo 'Klosterkutter'
Lilium 'Mandarin Star'
Cardiocrinum giganteum
Clematis 'Blue Angel'
Schizachyrium scoparium 'Blue Heaven'
Hydrangea macrophylla 'Princess Diana'
Camassia leichtlinii 'Blue Candle'