Malus 'Katherine'

Abelia chinensis Abelia chinensis AUTUMN FESTIVAL® 'Minabaut01' Abelia mosanensis Abeliophyllum distichum Acer campestre Acer campestre 'Carnival' Acer davidii ssp. grosseri Acer griseum Acer negundo 'Auratum' Acer negundo 'Flamingo' Acer negundo 'Variegatum' Acer palmatum Acer palmatum 'Asahi-Zuru' Acer palmatum 'Atropurpureum' Acer palmatum 'Bloodgood' Acer palmatum 'Crimson Queen' Acer palmatum 'Deshojo' Acer palmatum 'Garnet' Acer palmatum 'Katsura' Acer palmatum 'Momoiro Koyasan' Acer palmatum 'Orange Dream' Acer palmatum 'Ornatum' Acer palmatum 'Skeeter's Broom' Acer palmatum 'Wilson's Pink Dwarf' Acer palmatum var.dissectum Acer pensylvanicum Acer pensylvanicum 'Erythrocladum' Acer pictum (Acer mono) Acer platanoides Acer platanoides 'Marit' Acer pseudoplatanus 'Brilliantissimum' Acer pseudoplatanus 'Nizetii' Acer pseudoplatanus 'Tricolor' Acer rubrum Acer rubrum 'Scanlon' Acer rufinerve 'Albolimbatum' Acer rufinerve 'Winter Gold' Acer saccharum 'Newton Sentry' Acer shirasawanum 'Aureum' Acer sterculiaceum Acer tataricum subsp. ginnala Acer tataricum subsp. semenovii Acer tegmentosum Acer tegmentosum 'Joe Witt' Actinidia kolomikta Aeonium undulatum Aesculus glabra Aesculus hippocastanum Aesculus hippocastanum 'Hamptum Gold' Aesculus hippocastanum 'Wratislavia' Aesculus indica Aesculus pavia Aesculus pavia 'Atrosanguinea' Aesculus pavia 'Koehnei' Aesculus x carnea Aesculus x carnea 'Briotii' Aesculus x mutabilis 'Induta' Aesculus x neglecta 'Autumn Fire' Ailanthus altissima Albizia julibrissin 'Tropical Dream' Alnus cordata Amelanchier 'Ballerina' Amelanchier arborea 'Robin Hill' Amelanchier lamarckii Amorpha canescens Andromeda polifolia 'Blue Ice' Andromeda polifolia 'Compacta' Aralia elata Aralia elata var. mandshurica Aralia stipulata Aronia melanocarpa 'Hugin' Aronia melanocarpa 'Revontuli Hedger' RBR Aronia melanocarpa 'Revontuli Mound' RBR Aronia melanocarpa 'Revontuli Spreader' RBR Aronia x prunifolia 'Viking' Asimina triloba Aucuba japonica 'Crotonifolia'

Callicarpa bodinieri Callicarpa bodinieri 'Autumn Glory' Callicarpa bodinieri 'Imperial Pearl' Callicarpa bodinieri 'Profussion' Callicarpa bodinieri var. giraldii Callicarpa dichotoma 'Issai' Callicarpa japonica var. angustata Calluna vulgaris Calycanthus 'Aphrodite' Calycanthus 'Venus' Calycanthus floridus Camellia 'Francie L' Camellia japonica Camellia japonica 'Berenice Boddy' Camellia japonica 'Curly Lady' Camellia japonica 'R.L. Wheeler' Carmichaelia stevensonii Carpinus betulus Carpinus betulus 'Fastigiata' Carpinus betulus 'Frans Fontaine' Carpinus betulus 'Minor Globe' Carpinus betulus 'Monument' Carpinus betulus 'Monumentalis' Carpinus fangiana Caryopteris x clandonensis 'Beyond Midnight' ® Caryopteris x clandonensis 'Heavenly Blue' Caryopteris x clandonensis 'Summer Sorbet' PBR Caryopteris x clandonensis 'Sunny Blue' ® Caryopteris x clandonensis 'White Surprise' PBR Castanea sativa Castanea sativa 'Variegata' Catalpa bignonioides Catalpa bignonioides 'Aurea' Catalpa bignonioides 'Nana' Catalpa bungei Catalpa x erubescens 'Japonica' Catalpa x erubescens ‘Purpurea’ Ceanothus 'Blue Mound' Ceanothus arboreus Ceanothus arboreus 'Trewithen Blue' Ceanothus pallidus 'Marie Simon' Cephalanthus occidentalis Cercidiphyllum japonicum Cercidiphyllum japonicum 'Amazing Grace' Cercidiphyllum japonicum 'Magma' Cercidiphyllum japonicum 'Pendulum' Cercidiphyllum japonicum 'Rotfuchs' Cercis canadensis Cercis canadensis 'Eternal Flame' ('NC2016-2') Cercis canadensis 'Forest Pansy' Cercis canadensis 'Hearts of Gold' Cercis canadensis 'Lavender Twist®' Cercis canadensis 'Ruby Falls' Cercis chinensis Cercis chinensis 'Avondale' Cercis siliquastrum Cercis siliquastrum 'Bodnant' Chaenomeles japonica Chaenomeles japonica 'Cido Red' Chaenomeles japonica 'Cido' Chaenomeles japonica 'Red Joy' Chaenomeles speciosa 'Kinshiden' Chaenomeles speciosa 'Mango Storm' PBR Chaenomeles speciosa 'Orange Storm' PBR Chaenomeles speciosa 'Pink Storm' PBR Chaenomeles speciosa 'Scarlet Storm' PBR Chaenomeles speciosa 'Yukigoten' Chaenomeles x superba 'Andeken An Karl Ramcke' Chaenomeles x superba 'Crimson and Gold' Chaenomeles x superba 'Fire Dance' Chaenomeles x superba 'Nicoline' Chaenomeles x superba 'Pink Lady' Chaenomeles x superba 'Salmon Horizon' Chaenomeles x superba 'Texas Scarlet' Chamaecytisus purpureus Chimonanthus praecox Chionanthus retusus Chionanthus virginicus Chitalpa tashkentensis 'Summer Bells' Choisya ternata Choisya ternata 'Sundance' Cladrastis lutea Clematis recta Clerodendrum trichotomum Clethra alnifolia 'Pink Spire' Clethra barbinervis Colutea x media 'Copper Beauty' Comptonia peregrina Cornus 'Norman Hadden' Cornus 'Ormonde' Cornus 'Porlock' Cornus alba 'Aurea' Cornus alba 'Baton Rouge' (C. a. 'Minbat') Cornus alba 'Cream Cracker' PBR Cornus alba 'Elegantissima' Cornus alba 'Gouchaultii' Cornus alba 'Ivory Halo' ® PBR Cornus alba 'Siberian Pearls' Cornus alba 'Sibirica Variegata' Cornus alba 'Sibirica' Cornus alba MIRACLE ’Verpaalen02’ PBR Cornus alternifolia 'Variegata' Cornus canadensis Cornus capitata Cornus controversa 'Variegata' Cornus controversa 'Variegata' Cornus florida Cornus florida 'Cherokee Brave' Cornus florida 'Cherokee Daybreak' Cornus florida 'Rainbow' Cornus florida 'Rubra' Cornus kousa Cornus kousa 'Beni Fuji' Cornus kousa 'China Girl' Cornus kousa 'Eurostar' Cornus kousa 'Gloria Birkett' Cornus kousa 'Gold Star' Cornus kousa 'Great Star' Cornus kousa 'John Slocock' Cornus kousa 'Madame Butterfly' Cornus kousa 'Milky Way' Cornus kousa 'Satomi' Cornus kousa 'Tonko Rose' Cornus kousa 'Venus' Cornus kousa 'Weisse Fontaine' Cornus kousa 'Wieting's Select' Cornus kousa 'Wolf Eyes' Cornus kousa var. chinensis Cornus mas Cornus mas 'Aurea' Cornus mas 'Bolestraszycki' Cornus mas 'Bukowiński' Cornus mas 'Czarny' Cornus mas 'Florianka' Cornus mas 'Jolico' Cornus mas 'Juliusz' Cornus mas 'Jurek' Cornus mas 'Paczoski' Cornus mas 'Pioneer' Cornus mas 'Podolski' Cornus mas 'Schönbrunner Gourmet-Dirndl' Cornus mas 'Svetlachok' Cornus mas 'Swietljaczok' Cornus mas 'Swietłana' Cornus mas 'Szafer' Cornus mas 'Titus' Cornus mas 'Widubowskij' Cornus mas 'Władimirskij' Cornus nuttallii x florida Cornus officinalis Cornus racemosa Cornus sanguinea 'Compressa' Cornus sanguinea 'Winter Beauty' Cornus sericea 'Hedgerow's Gold' Cornus stolonifera 'Flaviramea' Cornus stolonifera 'White Gold' Cornus walteri Corylopsis pauciflora Corylopsis sinensis Corylopsis willmottiae Corylus avellana 'Aurea' Corylus avellana 'Contorta' Corylus avellana 'Pendula' Corylus avellana 'Red Majestic' PBR Corylus avellana Purple Umbrella 'JM 251' PBR Cotinus coggygria Cotinus coggygria 'Follis Purpureis' Cotinus coggygria 'Golden Lady' PBR Cotinus coggygria 'Golden Spirit’ ® (C. c. ‘Ancot’) Cotinus coggygria 'Grace' Cotinus coggygria 'Lilla' Cotinus coggygria 'Old Fashioned' Cotinus coggygria 'Purpureus' Cotinus coggygria 'Royal Purple' Cotinus coggygria 'Smokey Joe' Cotinus coggygria 'Winecraft Black' ® Cotinus coggygria 'Young Lady' ® Cotoneaster atropurpureus ' Variegatus' (C. horizontalis 'Variegatus') Cotoneaster bullatus Cotoneaster cochleatus 'Schneider' Cotoneaster dammeri 'Major' Cotoneaster dammeri 'Mooncreeper' Cotoneaster divaricata Cotoneaster franchetii Cotoneaster horizontalis Cotoneaster lucidus Cotoneaster nanshan 'Boer' Cotoneaster perpusillus (syn. C. horizontalis perpusillus) Cotoneaster procumbens 'Queen of Carpets' (C. microphyllus 'Queen of Carpets') Cotoneaster procumbens 'Streib's Findling' (C. microphyllus 'Streib's Findling') Cotoneaster prostatus 'Cooper' (C. dammeri 'Cooper') Cotoneaster radicans 'Eichholz' (C. dammeri 'Eichholz) Cotoneaster salicifolius 'Repens' Cotoneaster splendens Cotoneaster x suecicus 'Coral Beauty' (C. dammeri 'Coral Beauty') Cotoneaster x suecicus 'Juliette' (C. dammeri 'Juliette') Cotoneaster x suecicus 'Skogholm' (C. dammeri 'Skogholm') Cotoneaster x Ursynów Crassula arborescens Crataegus coccinea Crataegus monogyna 'Compacta' Crataegus x media 'Paul's Scarlet' Cydonia oblonga Cytisus battandieri Cytisus decumbens Cytisus nigricans 'Cyni' Cytisus praecox 'Allgold' Cytisus praecox 'Hollandia' Cytisus scoparius Cytisus scoparius 'Boskoop Ruby' Cytisus scoparius 'Burkwoodii' Cytisus scoparius 'Dukaat' Cytisus scoparius 'Firefly' Cytisus scoparius 'Lena'

Daphne × burkwoodii 'Briggs Moonlight' Daphne arbuscula Daphne mezereum f.alba Daphne tangutica Daphne x burkwoodii 'Gold Edge' Davidia involucrata Davidia involucrata var.vilmoriniana Decaisnea fargesii Deutzia × hybrida 'Mont Rose' Deutzia crenata Deutzia crenata 'Pride of Rochester' Deutzia gracilis Deutzia gracilis 'Nikko' (D. crenata ‘Nikko’) Deutzia gracilis 'Variegata' Deutzia longifolia 'Veitchii' Deutzia ningpoensis Deutzia scabra 'Candidisima' Deutzia x hybrida 'Pink Pom-Pom' Deutzia x hybrida 'Strawberry Fields' Deutzia x myriantha Deutzia Yuki Cherry Blossom 'NCDX2' Deutzia Yuki Snowflake 'NCDX1' Diervilla rivularis 'Kodiak® Black' Diervilla rivularis 'Kodiak® Orange' Diervilla rivularis 'Kodiak® Red' Diervilla sessilifolia 'Cool Splash'® PBR Diervilla x splendens Diva 'El Madrigal' PBR Dioscorea balcanica Dipteronia sinensis Disanthus cercidifolius

Fabiana imbricata 'Prostrata' Fagus sylvatica Fagus sylvatica 'Asplenifolia' Fagus sylvatica 'Atropunicea' (F. syl. 'Purpurea') Fagus sylvatica 'Aurea Pendula' Fagus sylvatica 'Bornyensis' Fagus sylvatica 'Dawyck Gold' Fagus sylvatica 'Dawyck Purple' Fagus sylvatica 'Lacinata' Fagus sylvatica 'Miltonensis' Fagus sylvatica 'Pendula' Fagus sylvatica 'Purpurea Nana' Fagus sylvatica 'Purpurea Pendula' Fagus sylvatica 'Remillyensis' Fagus sylvatica 'Rohan Obelisk' Fargesia murielae 'Luca' Firmiana simplex Forsythia 'Maluch' Forsythia ‘Goldrausch’ Forsythia MARÉE D'OR 'Courtasol' Forsythia x intermedia 'Goldzauber' Forsythia x intermedia 'Lynwood' Forsythia x intermedia 'Mindor' Forsythia x intermedia 'Spectabilis' Forsythia x intermedia 'Week-End' ® (F. x int. 'Courtalyn') Forsythia x intermedia MIKADOR 'Minfor6' PBR ® Fothergilla gardenii Fothergilla gardenii 'Blue Shadow' Fothergilla major Franklinia alatamaha Fraxinus angustifolia Fraxinus excelsior Fraxinus excelsior 'Aurea' Fraxinus excelsior 'Diversifolia' Fraxinus holotricha Fraxinus ornus

Gaultheria procumbens Genista lydia Genista pilosa 'Vancouver Gold' Genista tinctoria 'Royal Gold' Gleditsia triacanthos Gleditsia triacanthos 'Inermis' Gleditsia triacanthos 'Sunburst' Gymnocladus dioica

Ilex 'Clusterberry' Ilex aquifolium Ilex crenata 'Golden Gem' Ilex meserveae 'Heckenstar' Ilex opaca Ilex verticillata Ilex verticillata 'Oosterwijk' Ilex x meserveae 'Blue Angel' Ilex x meserveae 'Blue Boy' Ilex x meserveae 'Blue Girl' Ilex x meserveae 'Blue Prince' Ilex x meserveae 'Blue Princess' Ilex x meserveae 'Heckenfee' Indigofera 'Gerardiana' Indigofera decora Indigofera heterantha Indigofera potaninii Itea virginica 'Beppu' Itea virginica 'Henry Garnet' Itea virginica 'Little Henry' Itea virginica 'Scentlove'®

Jasminum nudiflorum Juglans mandshurica Juglans regia Juglans regia 'Leopold'

Kalmia angustifolia 'Rubra' Kalmia latifolia Kalmia latifolia 'Ewa' Kalmia latifolia 'Midnight' Kalmia latifolia 'Minuet' Kalmia latifolia 'Ostbo Red' Kalmia latifolia 'Splendens' Kalopanax pictus Kerria japonica Kerria japonica 'Pleniflora' Koelreuteria bipinnata Koelreuteria paniculata Kolkwitzia amabilis Kolkwitzia amabilis 'Adorabelle'® Kolkwitzia amabilis 'Pink Cloud'

Laburnum anagyroides Laburnum anagyroides 'Quercifolium' Laburnum watereri 'Vossii' Lavandula angustifolia Lavandula angustifolia 'Alba' Lavandula angustifolia 'Anna' Lavandula angustifolia 'Dwarf Blue' Lavandula angustifolia 'Hidcote' Lavandula angustifolia 'Munstead' Lavandula angustifolia 'Royal Purple' Lavandula stoechas 'Bella Rose' Lavandula stoechas 'Papillon' Lavandula x intermedia 'Grappenhall' Lavandula x intermedia 'Seal' Ledum groenlandicum 'Compactum' Lespedeza bicolor Lespedeza bicolor 'Yakushima' Leucothoe axillaris 'Curly Red' Leucothoe SCARLETTA 'Zeblid' Leucothoe walteri 'Rainbow' Leycesteria formosa 'Little Lanterns' Ligustrum 'Vicaryi' Ligustrum ibota 'Musli' PBR Ligustrum ovalifolium 'Aureum' Ligustrum vulgare 'Atrovirens' Lindera obtusiloba Liquidambar styraciflua Liquidambar styraciflua 'Aurora' Liquidambar styraciflua 'Golden Treasure' Liquidambar styraciflua 'Worplesdon' Liriodendron tulipifera Liriodendron tulipifera 'Aureomarginata' Liriodendron tulipifera 'Edward Gursztyn' PBR Liriodendron tulipifera 'Fastigiata' Lonicera kamtschatica (Lonicera caerulea var. kamtschatica) Lonicera nitida 'Golden Glow' PBR Lonicera nitida 'Lemon Beauty' Lonicera pileata 'Moss Green' Lonicera vesicaria Lycium barbarum 'New Big'

Nandina domestica Nandina domestica 'Firepower' Neillia thibetica Nothofagus obliqua Nyssa sylvatica

Olearia macrodonta Osmanthus × burkwoodii Osmanthus delavayi Ostrya carpinifolia Ostrya japonica Oxydendrum arboreum

Quercus 'Monument' PBR Quercus bicolor Quercus cerris Quercus crassifolia Quercus dentata Quercus ilex Quercus imbricaria Quercus macranthera Quercus palustris 'Green Dwarf' Quercus palustris 'Isabel' Quercus petraea 'Eastcolumn' Quercus pontica Quercus robur Quercus robur 'Bartek' Quercus robur 'Concordia' Quercus robur 'Fastigiata' Quercus robur 'Pendula' Quercus robur 'Posnania' Quercus rubra Quercus sp. Quercus suber Quercus velutina Quercus x bimundorum CRIMSON SPIRE 'Crimschmidt' Quercus x hispanica 'Lucombeana' Quercus x warei 'Regal Prince' syn. 'Long' PBR

Tamarix chinensis Tamarix gallica Tamarix ramosissima 'Pink Cascade' (T. pentandra 'Pink Cascade') Tamarix tetrandra Tetradium daniellii syn. Evodia daniellii Tilia cordata Tilia cordata 'Komsta Minima' Tilia x europaea 'Wratislaviensis' Toona sinensis 'Flamingo'

Ulmus 'Camperdownii' Ulmus 'Columella' Ulmus carpinifolia 'Variegata' Ulmus glabra Ulmus glabra 'Exoniensis' ('Fastigiata') Ulmus hollandica 'Wredei' Ulmus minor 'Louis van Houtte' Ulmus minor 'Sarniensis' Ulmus parvifolia

Weigela 'Black and White' Weigela 'Bristol Ruby' Weigela 'Candida' Weigela 'Courtared' (W. 'Lucifer') ® Weigela 'Ewa Radke' Weigela 'Naomi Campbell' Weigela 'Olympiade' Weigela 'Red Prince' Weigela 'Styriaca' Weigela florida Weigela florida 'Alexandra' PBR Weigela florida 'Brigela' PBR Weigela florida 'Cappucino' ® PBR Weigela florida 'Caricature' Weigela florida 'Magical Rainbow' (W. fl. 'Kolmagira') Weigela florida 'Midnight Wine' PBR Weigela florida 'Minor Black' ® PBR Weigela florida 'Monet' ® PBR (W. fl. ‘Verweig') Weigela florida 'Nana Purpurea' Weigela florida 'Nana Variegata' Weigela florida 'Pink Princess' Weigela florida 'Suzanne' Weigela florida 'Victoria' Weigela florida 'Wings of Fire' Weigela florida Colourtwist® 'Sunny Side Up' Weigela florida f. alba Weigela florida LIME MONSTER 'BRS1' PBR Weigela florida MY MONET 'Sunset' Weigela florida Trilogy 'VUKOZGemini' (Czechmark Trilogy®) PBR Weigela florida Twopink 'VUKOZ90345' (Czechmark Twopink®) Weigela middendorffiana

Xanthorhiza simplicissima

Zelkova carpinifolia Zelkova serrata i 'Variegata' Zenobia pulverulenta