Lonicera tatar. 'Hack's Red'
Hypericum kalmianum 'Cobalt-n-Gold'
Chiastophyllum oppositifolium
Hippeastrum 'Ambiance'
Cardiocrinum giganteum
Clematis 'Blue Angel'
Schizachyrium scoparium 'Blue Heaven'
Hydrangea macrophylla 'Princess Diana'
Camassia leichtlinii 'Blue Candle'