Amelanchier

Aronia

Bauhinia

Callicarpa

Chaenomeles

Clethra

Cornus

Cotoneaster

Crataegus

Cydonia

Daphne

Deutzia

Enkianthus

Hibiscus

Hydrangea

Lagerstroemia

Lonicera

Magnolia

Malus

Menziesia

Pachysandra

Prunus

Rhododendron (defines evaluations)

Spiraea

Symphoricarpos

Syringa

Vaccinium

Viburnum

Weigela