Camellia

Chaenomeles

Clematis

Clethra

Crataegus

Daboecia

Daphne

Enkianthus

Erica

Escallonia

Hibiscus

Hydrangea

Jasminum

Kalmia

Lagerstroemia

Magnolia

Nerium

Olneya

Pieris

Prunus

Rhododendron (defines evaluations)

Ribes

Rosa

Syringa

Viburnum

Vitex

Weigela