Ceanothus

Ceanothus × delilianus 'Henri Desfosse' (Henri Desfosse Ceanothus)
Ceanothus gloriosus (Point Reyes Ceanothus )
Ceanothus griseus var. horizontalis (Carmel Creeper Ceanothus)
Ceanothus griseus var. horizontalis 'Yankee Point' (Yankee Point Ceanothus)
Ceanothus impressus (Santa Barbara Ceanothus)
Ceanothus integerrimus (Deer Brush)
Ceanothus sanguineus (Redstem Ceanothus )
Ceanothus thyrsiflorus (Blue Blossom)
Ceanothus thyrsiflorus 'El Dorado' (El Dorado Ceanothus )
Ceanothus velutinus (Snowbrush )

Ceiba

Ceiba speciosa (Floss Silk Tree)

Cercidiphyllum

Cercidiphyllum japonicum (Katsura )

Chaenomeles

Chaenomeles speciosa (Flowering Quince)

Chionanthus

Chionanthus retusus (Chinese Fringetree)

Cistus

Cistus 'Ann Palmer' (Ann Palmer Rockrose)
Cistus 'Doris Hibberson' (Doris Hibberson Rockrose)
Cistus 'Grayswood Pink' (Grayswood Pink Rockrose)
Cistus 'Snow Fire' (Snow Fire Rockrose)
Cistus 'Victor Reiter' (Victor Reiter Rockrose)
Cistus × corbariensis (White Rockrose)
Cistus × crispatus 'Warley Rose' (Warley Rose Rockrose)
Cistus × dansereaui 'Decumbens' (Decumbens Rockrose)
Cistus × florentinus 'Fontfroide' (Fontfroide Rockrose)
Cistus ladanifer (Common Gum Rockrose)
Cistus × oblongifolius (Oblongifolius Rockrose)
Cistus × pulverulentus 'Sunset' (Sunset Rockrose)
Cistus × purpureus (Orchid Rockrose)

Clematis

Clematis cirrhosa var. balearica (Fern-leaved Clematis)
Clematis montana var. rubens (Pink Anemone Clematis)
Clematis tangutica (Golden Clematis)

Clethra

Clethra alnifolia (Summersweet )
Clethra alnifolia 'Ruby Spice' (Ruby Spice Summersweet )

Corylopsis

Corylopsis (Winterhazel)
Corylopsis pauciflora (Buttercup Winterhazel)
Corylopsis spicata (Spike Winterhazel)

Corylus

Corylus americana (American Hazel )
Corylus avellana (Hazelnut )
Corylus avellana 'Contorta' (Contorted Filbert )
Corylus avellana 'Red Dragon' (Red Dragon Hazelnut)
Corylus avellana 'Rote Zeller' (Rote Zeller Hazelnut)
Corylus colurna (Turkish Hazel)
Corylus cornuta var. californica (Western Hazel )

Crataegus

Crataegus 'Autumn Glory' (Autumn Glory Hawthorn)
Crataegus ambigua (Russian Hawthorn)
Crataegus columbiana (Columbia Hawthorn)
Crataegus crus-galli (Cockspur Hawthorn)
Crataegus douglasii (Douglas Hawthorn )
Crataegus germanica (Medlar)
Crataegus laevigata (English Hawthorn )
Crataegus laevigata Crimson Cloud™ (Crimson Cloud Hawthorn)
Crataegus laevigata 'Pauls Scarlet' (Paul's Scarlet Hawthorn)
Crataegus × lavallei (Lavalle Hawthorn)
Crataegus monogyna (Singleseed Hawthorn )
Crataegus monogyna 'Flexuosa' (Contorted Singleseed Hawthorn)
Crataegus phaenopyrum (Washington Hawthorn)
Crataegus punctata (Dotted Hawthorn )
Crataegus viridis (Green Hawthorn,)
Crataegus viridis 'Winter King' (Winter King Hawthorn )

Crinodendron

Crinodendron hookerianum (Chilean Lantern Tree)

Davidia

Davidia involucrata (Dove Tree )

Deutzia

Deutzia gracilis (Slender Deutzia)
Deutzia gracilis 'Nikko' (Nikko Slender Deutzia)
Deutzia × kalmiiflora (Kalmia Flowered Deutzia)
Deutzia × lemoinei (Lemoine Deutzia)
Deutzia paviflora var. amurensis (Amur Deutzia)
Deutzia scabra (Fuzzy Deutzia)
Deutzia scabra 'Flore-pleno' (Flore-pleno Fuzzy Deutzia)
Deutzia scabra 'Godsall Pink' (Godsall Pink Fuzzy Deutzia)

Elaeagnus

Elaeagnus umbellata (Autumn Elaeagnus )

Enkianthus

Enkianthus campanulatus (Redvein Enkianthus)

Eriobotrya

Eriobotrya japonica (Loquat)

Escallonia

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

Euonymus

Euonymus atropurpureus (Eastern Wahoo)
Euonymus japonicus (Japanese Euonymus )
Euonymus × kiautschovicus 'Manhattan' (Manhattan Spreading Euonymus)

Fatsia

Fatsia japonica (Japanese Fatsia)
Fatsia japonica 'Spider's Web' (Spider's Web Japanese Fatsia)
Fatsia japonica 'Variegata' (Variegated Japanese Fatsia)

Forestiera

Forestiera pubescens (Desert Olive)

Forsythia

Forsythia × intermedia (Border Forsythia)
Forsythia viridissima (Greenstem Forsythia)
Forsythia viridissima 'Bronxensis' (Bronxensis Greenstem Forsythia)
Forsythia viridissima var. koreana 'Kumson' (Kumson Korean Greenstem Forsythia)

Fothergilla

Fothergilla gardenii (Dwarf Fothergilla)
Fothergilla gardenii 'Jane Platt' (Jane Platt Fothergilla)
Fothergilla major (Large Fothergilla )

Fragaria

Fragaria × chiloensis (Beach Strawberry )

Franklinia

Franklinia alatamaha (Franklin Tree )

Fraxinus

Fraxinus ornus (Flowering Ash)
Fraxinus sieboldiana (Siebold Ash, )

Fuchsia

Fuchsia magellanica (Magellan Fuchsia )

Gaultheria

Gaultheria miqueliana (Miquel's Spicywintergreen )
Gaultheria mucronata (Chilean Pernettya)
Gaultheria mucronata Pink Snowdrop™ (Pink Snowdrop Chilean Pernettya)
Gaultheria procumbens (Wintergreen)