Aesculus

Amelanchier

Aronia

Bauhinia

Buddleia

Callicarpa

Chaenomeles

Clematis

Clethra

Cornus

Cotoneaster

Crataegus

Cydonia

Daphne

Deutzia

Enkianthus

Hibiscus

Hydrangea

Lagerstroemia

Lonicera

Magnolia

Malus

Menziesia

Pachysandra

Paeonia

Physocarpus

Prunus

Rhododendron (defines evaluations)

Robinia

Rosa

Sambucus

Sorbus

Spiraea

Symphoricarpos

Syringa

Tetradium

Vaccinium

Viburnum