Abelia

Amelanchier

Arctostaphylos

Aronia

Callicarpa

Camellia

Chaenomeles

Cistus

Clethra

Crataegus

Deutzia

Enkianthus

Escallonia

Gaultheria

Hibiscus

Hydrangea

Leucothoe

Malus

Pachysandra

Physocarpus

Pieris

Prunus

Rhaphiolepis

Rhododendron (defines evaluations)

Spiraea

Vaccinium

Viburnum

Weigela