Aesculus

Aesculus pavia (Red Buckeye)
Aesculus pavia 'Humilis' (Dwarf Red Buckeye)
Aesculus sylvatica (Painted Buckeye )

Agave

Agave colorata (Mescal Ceniza )
Agave shawii (Shaw's Agave)

Berberis

Berberis darwinii (Darwin Barberry)
Berberis triacanthophora (Threespine Barberry )

Calycanthus

Calycanthus × raulstonii 'Hartlage Wine' (Hartlage Wine Sweetbush )

Camellia

Camellia japonica (Japanese Camellia)
Camellia sasanqua (Sasanqua Camellia)

Chaenomeles

Chaenomeles speciosa (Flowering Quince)

Cistus

Cistus × pulverulentus 'Sunset' (Sunset Rockrose)

Clethra

Clethra alnifolia 'Ruby Spice' (Ruby Spice Summersweet )

Corylus

Corylus avellana 'Red Dragon' (Red Dragon Hazelnut)
Corylus avellana 'Rote Zeller' (Rote Zeller Hazelnut)

Crinodendron

Crinodendron hookerianum (Chilean Lantern Tree)

Enkianthus

Enkianthus campanulatus (Redvein Enkianthus)

Escallonia

Escallonia 'Compakta' (Compakta Escallonia)
Escallonia laevis 'Gold Brian' (Gold Brian Escallonia)
Escallonia × langleyensis (Langley Escallonia)
Escallonia × langleyensis 'Pride of Donard' (Pride of Donard Escallonia)

Euonymus

Euonymus atropurpureus (Eastern Wahoo)

Fuchsia

Fuchsia magellanica (Magellan Fuchsia )

Grevillea

Grevillea aquifolium (Holly Grevillea)
Grevillea lanigera (Woolly Grevillea)

Hamamelis

Hamamelis × intermedia (Witchhazel)
Hamamelis × intermedia 'Arnold Promise' (Arnold Promise Witchhazel)
Hamamelis × intermedia 'Diane' (Diane Witchhazel)
Hamamelis × intermedia 'Jelena' (Jelena Witchhazel)
Hamamelis vernalis (Vernal Witchhazel )

Hibiscus

Hibiscus syriacus (Rose of Sharon )

Hydrangea

Hydrangea paniculata 'Pink Diamond' (Pink Diamond Hydrangea)
Hydrangea paniculata 'Unique' (Unique Hydrangea)

Lavatera

Lavatera thuringiaca (Tree Lavatera)

Leycesteria

Leycesteria formosa (Pheasant-eye )

Loropetalum

Loropetalum chinense var. rubrum (Pink-flowering Fringe-flower )
Loropetalum chinense var. rubrum 'Daybreak's Flame' (Daybreak's Flame Fringe-flower)
Loropetalum chinense var. rubrum Plum Delight™ (Plum Delight Fringe-flower)

Morella

Morella californica (Pacific Waxmyrtle )

Parrotia

Parrotia persica (Persian Parrotia )

Pieris

Pieris japonica (Japanese Pieris )
Pieris japonica 'Valley Valentine' (Valley Valentine Pieris)

Prunus

Prunus × cistena (Purpleleaf Sandcherry )
Prunus prostrata (Rock Cherry )

Rhododendron (defines evaluations)

Rhododendron formosum var. formosum (Formosum Rhododendron)

Ribes

Ribes × gordonianum (Gordon's Currant)
Ribes malvaceum (Chaparral Currant)
Ribes nevadense (Mountain Pink Currant )
Ribes sanguineum (Flowering Currant )
Ribes sanguineum 'Elk River Red' (Elk River Red Flowering Currant)

Rosa

Rosa acicularis (Wild Prickly Rose)
Rosa rugosa (Rugosa Rose)
Rosa woodsii (Woods' Rose)

Rubus

Rubus spectabilis (Salmonberry)

Spiraea

Spiraea douglasii (Douglas Spirea )
Spiraea japonica 'Anthony Waterer' (Anthony Waterer Spirea )
Spiraea japonica 'Bumalda' (Bumald Spirea)
Spiraea japonica Double Play® Painted Lady® (Painted Lady® Spirea)
Spiraea japonica 'Goldflame' (Goldflame Spirea)
Spiraea japonica var. alpina (Daphne Spirea)
Spiraea splendens (Mountain Spirea)

Viburnum

Viburnum opulus var. sargentii 'Onondaga' (Onondaga Viburnum )

Weigela

Weigela florida (Weigela)