Abelia 'Edward Goucher'

Abelia x grandiflora

Abelia x grandiflora 'Kaleidoscope'

Abeliophyllum distichum

Abies koreana

Abies nordmanniana

Abies pinsapo 'Glauca'

Abutilon 'Canary Bird'

Acacia baileyana 'Purpurea'

Acacia pravissima

Acanthus mollis

Acer cappadocicum 'Rubrum'

Acer davidii

Acer griseum

Acer negundo

Acer palmatum 'Ariadne'

Acer palmatum 'Coonara Pygmy'

Acer palmatum 'Orangeola'

Acer palmatum 'Red Cloud'

Acer palmatum 'Shishigashira

Acer palmatum 'Sister Ghost'

Acer palmatum 'Wilson's Pink Dwarf'

Acer pseudoplatanus

Acer saccharum

Acer x freemanii 'Autumn Blaze'

Achillea 'Moonshine'

Aclepias tuberosa

Aconitum carmichaelii (Arendsii Group) 'Arendsii'

Actaea pachypoda 'Misty Blue'

Actaea simplex (Atropurpurea Group) 'Brunette'

Adiantum pedatum

Aeculus turbinata

Aesculus flava

Aesculus parviflora

Agapanthus africanus

Agave americana 'Variegata'

Alchemilla mollis

Allium christophii

Allium schubertii

Allium sphaerocephalon

Amarine tubergenii 'Aphrodite'

Amelanchier - TBC

Amelanchier alnifolia 'Obelisk'

Amelanchier canadensis

Amelanchier lamarckii

Amelanchier x grandiflora 'Ballerina'

Amicia zygomeris

Amorpha canescens

Amorpha fruticosa

Amsonia hubrichtii

Anaphalis triplinervis 'Sommerschnee'

Anemone hupehensis var. japonica

Anemone x hybrida 'Honorine Jobert'

Anisodontea 'El Rayo'

Aralia cordata 'Sun King'

Aralia spinosa

Araucaria araucana

Arbutus unedo 'Compacta'

Argyrocytisus battandieri

Aronia - TBC

Aronia melanocarpa

Aronia melanocarpa 'Viking'

Aronia prunifolia

Artemisia ludoviciana 'Valerie Finnis'

Aruncus 'Horatio'

Asimina triloba

Asimina triloba 'Sunflower'

Astelia 'Silver Shadow'

Aster - TBC

Aster x frikartii 'Monch'

Astilbe - TBC

Astilbe 'Bressingham Beauty'

Astilbe 'Deutschland'

Astilbe 'Fanal'

Astilbe 'Red Sentinel'

Astilbe 'Washington'

Athyrium 'Ghost'

Azara microphylla

Azara microphylla 'Variegata'

Banksia praemorsa

Baptisia 'Vanilla Cream' (Decadence Series)

Baptisia australis

Baptisia bracteata var. leucophaea

Begonia grandis subsp.evansiana

Begonia grandis subsp.evansiana var. alba

Berberis thunbergii f. atropurpurea

Berberis x ottawensis f. purpurea 'Superba'

Berkheya purpurea

Beschorneria yuccoides

Betonica officinalis 'Hummelo'

Betula lenta

Betula papyrifera

Betula sp.

Bistorta amplexicaulis 'Fat Domino'

Bistorta amplexicaulis 'Inverleith'

Blechnum spicant

Boehmeria sieboldiana

Boehmeria spicata

Brunnera macrophylla 'Jack of Diamonds'

Buddleja alternifolia

Buddleja davidii

Buddleja davidii 'Black Knight'

Buddleja fallowiana x davidii 'Lochinch'

Buddleja globosa

Buddleja glomerata 'Silver Service'

Buddleja lindleyana

Buddleja x weyeriana 'Sungold'

Buxus sempervirens

Calamagrostis brachytricha

Callicarpa bodinieri var. giraldii 'Profusion'

Callistemon viminalis 'Hot Pink'

Calocedrus decurrens 'Aureovariegata'

Calycanthus 'Aphrodite'

Calycanthus 'Venus'

Calycanthus floridus

Calycanthus x raulstonii 'Hartlage Wine'

Camassia leichtlinii

Camassia quamash

Camellia japonica 'Adeyaka'

Camellia japonica (red)

Camellia japonica (white)

Camellia sasanqua 'Crimson King'/'Yuletide'

Camellia sinensis

Camellia transnokoensis

Camellia x williamsii 'Anticipation'

Campanula - TBC

Campanula portenschlagiana

Campanula punctata f. rubriflora

Camptotheca acuminata

Canna 'Durban'

Canna 'Stuttgart'

Canna 'Wyoming'

Carex oshimensis 'Evergold'

Carex testacea

Carpenteria californica 'Bodnant'

Carpinus betulus

Carpinus caroliniana

Carya illinoiensis

Carya ovata

Castanopsis sieboldii

Catalpa x erubescens 'Purpurea'

Ceanothus - TBC

Ceanothus 'Blue Jeans'

Ceanothus 'Concha'

Ceanothus 'Victoria'

Ceanothus arboreus 'Trewithen Blue'

Ceanothus thyrsiflorus var. repens

Ceanothus x delilianus 'Gloire de Versailles'

Cedrus deodara

Cedrus libani

Centranthus ruber

Centranthus ruber 'Albus'

Cephalanthus occidentalis

Cephalotaxus harringtonii 'Fastigiata'

Ceratostigma plumbaginoides

Ceratostigma willmottianum

Cercidiphyllum japonicum

Cercis canadensis 'Alley Cat'

Cercis canadensis 'Carolina Sweetheart'

Cercis canadensis 'Forest Pansy'

Cercis canadensis 'Golden Falls'

Cercis canadensis 'LIttle Woody'

Cercis canadensis 'Texas White'

Cercis canadensis 'Vanilla Twist'

Cercis canadensis Ruby Falls'

Cercis siliquastrum

Cerinthe major 'Purpurascens'

Cestrum 'Newellii'

Chasmanthium latifolium

Chelone obliqua

Chimonanthus praecox

Chionanthus virginicus

Choisya ternata

Choisya x dewitteana 'Aztec Pearl'

Chrysanthemum 'Anastasia'

Chrysanthemum 'Citronella'

Chrysanthemum 'Clara Curtis'

Chrysanthemum 'Emperor of China'

Cistus albidus

Cistus albidus - TBC

Cistus corbariensis - TBC

Cistus ladanifer - TBC

Cistus laurifolius

Cistus monspeliensis

Cistus salvifolius

Cistus x skanbergii

Citrus x aurantiifolia

Citrus x aurantium

Citrus x limon

Cladrastis kentukea

Clematis heracleifolia

Clerodendrum bungei

Clerodendrum trichotomum var. fargesii

Clethra alnifolia 'Ruby Spice'

Clethra barbinervis

Clethra pringlei

Coleonemea 'Sunset Gold'

Colutea arborescens

Convolvulus sabatius

Coreopsis grandiflora

Cornus 'Norman Hadden'

Cornus alba 'Sibirica'

Cornus canadensis

Cornus capitata

Cornus elliptica 'Empress of China'

Cornus florida

Cornus florida 'Daybreak'

Cornus florida 'Sunset'

Cornus florida Cherokee Brave

Cornus florida Cherokee Chief

Cornus florida f. rubra

Cornus hongkongensis

Cornus kousa 'China Girl'/'Milky Way' - TBC

Cornus kousa 'Miss Satomi'

Cornus kousa var. chinensis

Cornus x elwinortonii 'Venus'

Cornus x rutgersensis 'Aurora'

Corokia cotoneaster

Corokia x virgata 'Frosted Chocolate'

Correa - TBC

Corylopsis spicata

Corylus avellana

Cota tinctoria

Cotinus 'Grace'

Cotinus coggygria 'Royal Purple'

Cotoneaster lacteus

Crinodendron patagua

Crocosmia 'Lucifer'

Crocosmia x crocosmiiflora 'Emily McKenzie'

Crocosmia x crocosmiiflora 'George Davison'

Cryptomeria japonica 'Elegans'

Cupressus macrocarpa

Cupressus sempervirens Stricta Group

Cydonia oblonga

Cyrtomium falcatum

Dactylorhiza sp. - TBC

Dahlia 'American Dawn'

Dahlia 'Belfloor'

Dahlia 'Belle of Barmera'

Dahlia 'Bishop of Oxford'

Dahlia 'Black Jack'

Dahlia 'Brown Sugar'

Dahlia 'Cafe au Lait Royale'

Dahlia 'Copperboy'

Dahlia 'Creme de Cassis'

Dahlia 'Creme de Cognac'

Dahlia 'Dazzling Magic'

Dahlia 'Fancy Pants'

Dahlia 'Happy Butterfly'

Dahlia 'Honka Black'

Dahlia 'Lady Darlene'

Dahlia 'Mexican Star'

Dahlia 'Senior's Hope'

Dahlia 'Waltzing Mathilda'

Dasylirion longissimum

Davidia involucrata

Decaisnea fargesii

Deschampsia caespitosa

Desfontainia fulgens (syn. D. spinosa)

Deutzia - TBC

Deutzia gracilis 'Nikko'

Deutzia scabra 'Plena'

Deutzia setchuenensis var. corymbiflora

Deutzia x hybrida 'Mont Rose'

Deutzia x hybrida 'Strawberry Fields''

Dichroa febrifuga

Dicksonia antarctica

Dictamnus albus

Diervilla sesslifolia

Dietes iridioides

Digitalis purpurea f. albiflora

Diospyros kaki

Dorycnium hirsutum 'Frejorgues'

Drimys winteri

Dryopteris affinis - TBC

Dryopteris cycadina

Dryopteris erythrosora

Dryopteris erythrosora var. prolifica

Dryopteris filix-mas

Dryopteris sieboldii

Dryopteris wallichiana

Echinops bannaticus

Echium candicans

Eleagnus multiflora

Eleagnus umbellata

Eleagnus x submacrophylla 'Gilt Edge'

Eleagnus x submacrophylla 'Limelight'

Emmenopterys henryi

Enkianthus campanulatus

Epilobium canum (Zauschneria californica)

Epimedium 'Amber Queen'

Epimedium 'Beni-kujaku'

Epimedium 'Black Sea'

Epimedium 'Domino'

Epimedium 'Flowers of Sulphur'

Epimedium 'L'orchidee'

Epimedium 'La Bayadere'

Epimedium 'Lilafee'

Epimedium 'Lohengrin'

Epimedium 'Pink Elf'

Epimedium 'Red Maximum'

Epimedium 'Sphinx Twinkler'

Epimedium 'Spine Tingler' (syn. E. 'Sphinx Twinkler')

Epimedium davidii

Epimedium elongatum

Epimedium grandiflorum 'Akebono'

Epimedium grandiflorum 'Purple Pixie'

Epimedium grandiflorum 'Red Beauty'

Epimedium grandiflorum 'Shiho'

Epimedium pubigerum

Epimedium rubrum

Epimedium rubrum 'Galadriel'

Epimedium stellulatum 'Wudang Star'

Epimedium sulphureum

Epimedium x versicolor 'Cupreum'

Epimedium x warleyense

Epimedium x warleyense 'Orangekoenigin'

Epimedium youngianum 'Yenomoto'

Erica arborea

Erica arborea f. aureifolia

Erigeron karvinskianus

Eriobotrya japonica

Eryngium 'Jos Eijking'

Eryngium agavifolium

Eryngium yuccifolium

Escallonia 'Iveyi'

Escallonia laevis 'Pink Elle'

Eschscholzia californica

Eucalyptus gunnii

Eucalyptus gunnnii

Eucalyptus parvula

Eucalyptus pauciflora

Eucryphia x intermedia 'Rostrevor'

Euonymus alatus 'Compactus'

Euphorbia characias susbp. wulfenii

Euphorbia griffithii 'Fireglow'

Euphorbia mellifera

Euphorbia schillingii

Euphorbia seguieriana subsp. Niciciana

Eurybia divaricata

Eutrochium maculatum 'Riesenschirm'

Eutrochium purpureum 'Baby Joe'

Exorchorda x macrantha 'The Bride'

Fagus sylvatica Atropurpurea Group

Fatsia japonica

Fatsia polycarpa Green Fingers

Feijoa sellowiana

Feijoa sellowiana 'Coolidge'

Feijoa sellowiana 'Goliath'

Feijoa sellowiana 'Mammoth'

Ficus carica

Filipendula ulmaria

Firmiana simplex

Foeniculum vulgare

Foeniculum vulgare 'Purpureum'

Forsythia x intermedia

Fothergilla major

Francoa sonchifolia

Franklinia alatamaha

Fremontodendron 'California Glory'

Genista 'Porlock'

Gentiana asclepiadea

Geranium - TBC

Geranium 'Ann Folkard'

Geranium 'Orion'

Geranium 'Patricia'

Geranium 'Rozanne'

Geranium 'Tiny Monster'

Geranium (Cinereum Group) 'Ballerina'

Geranium cinereum 'Ballerina'

Geranium macrorrhizum

Geranium nodosum

Geranium phaeum 'Samobor'

Geranium psilostemon 'Catherine Deneuve'

Geranium sanguineum

Geranium sanguineum 'Max Frei'

Geranium sanguineum var. striatum

Geranium wlassovianum

Geranium x cantabrigiense 'Biokovo'

Geranium x magnificum

Geranium x oxonianum 'Claridge Druce'

Geranium x oxonianum 'Katherine Adele'

Geranium x oxonianum 'Wargrave Pink'

Geum 'FireStarter'

Geum 'Lady Stratheden'

Geum 'Mai Tai'

Geum 'Mrs J. Bradshaw'

Gillenia trifoliata

Ginkgo biloba

Gladiolus papilio

Gleditsia triacanthos

Glyptostrobus pensilis

Gordlinia grandiflora

Grevillea - TBC

Grevillea 'Bronze Rambler'

Grevillea 'Firecracker'

Grevillea juniperina

Grevillea robusta

Grevillea rosmarinifolia

Grevillea x semperflorens

Griselinia littoralis

Gymnocladus dioicus

Hakonechloa macra 'Aureola'

Halesia carolina

Hebe - TBC

Helenium 'Moerheim Beauty'

Helichrysum italicum

Hemerocallis - yellow

Hemerocallis 'American Revolution'

Hemerocallis 'Apache Wardance'

Hemerocallis 'Aztec Firebird'

Hemerocallis 'Banshee Baby Talk'

Hemerocallis 'Bonnie Boy'

Hemerocallis 'Breath of Blue Air'

Hemerocallis 'Catherine Woodbury'

Hemerocallis 'Crimson Pirate'

Hemerocallis 'Edge of Chaos'

Hemerocallis 'Funky Windmill'

Hemerocallis 'Hot Wheels'

Hemerocallis 'Jolly Hearts'

Hemerocallis 'Lavender Tutu'

Hemerocallis 'Lovely Light'

Hemerocallis 'Magic Dawn'

Hemerocallis 'Margaret Perry'

Hemerocallis 'Mary Guenther'

Hemerocallis 'Neyron Rose'

Hemerocallis 'Pink Damask'

Hemerocallis 'Rainbow Candy'

Hemerocallis 'Sammy Russell'

Hemerocallis 'Spanish Fire'

Hemerocallis 'Stafford'

Hemerocallis 'Tang'

Hemerocallis 'Tennessee Flycatcher'

Hemerocallis 'Voodoo Dancer'

Hemerocallis 'Warm Summer Days'

Hemerocallis dumortieri

Heptacodium miconoides

Heptapleurum taiwanianum (syn. Schefflera taiwaniana)

Hesperantha coccinea

Heuchera 'Caramel'

Hibiscus syriacus (white)

Hoheria populnea

Hosta 'Francee' (fortunei)

Hosta 'Praying Hands'

Hosta (Tardiana Group) 'Halcyon'

Hosta fortunei var. aureomarginata

Hovenia dulcis

Hydrangea anomala ssp. Glabra 'Crug Coral'

Hydrangea arborescens 'Annabelle'

Hydrangea aspera 'Anthony Bullivant'

Hydrangea aspera 'Bellevue'

Hydrangea aspera 'Hot Chocolate'

Hydrangea aspera 'Velvet and Lace'

Hydrangea aspera Villosa Group

Hydrangea involucrata

Hydrangea involucrata 'Late Love'

Hydrangea involucrata 'Yoraku Tama'

Hydrangea macrophylla

Hydrangea macrophylla 'Generale Vicomtesse de Vibraye'

Hydrangea macrophylla 'Klaveren'

Hydrangea macrophylla 'Koria'

Hydrangea macrophylla 'Lanarth White'

Hydrangea macrophylla 'Mme Emile Mouillere'

Hydrangea macrophylla 'Tiffany'

Hydrangea paniculata - TBC

Hydrangea paniculata 'Diamant Rouge'

Hydrangea paniculata 'Limelight'

Hydrangea paniculata 'Little Lime'

Hydrangea paniculata 'Pinky Winky'

Hydrangea paniculata 'Unique'

Hydrangea paniculata 'Vanille Fraise'

Hydrangea quercifolia 'Alice'

Hydrangea quercifolia 'Amethyst'

Hydrangea quercifolia 'Little Honey'

Hydrangea quercifolia 'Snow Queen'

Hydrangea quercifolia 'Snowflake'

Hydrangea serrata 'Grayswood'

Hydrangea serrata 'Preziosa'

Hydrangea serrata 'Tiara'

Hydrangea x versicolor 'Round Blue' (syn. Dichroa versicolor 'Round Blue')

Hylotelephium 'Blue Pearl' (Sunsparkler Series)

Hylotelephium 'Herbstfreude'

Hylotelephium 'Jose Aubergine'

Hylotelephium 'Matrona'

Hylotelephium 'Mr Goodbud'

Hylotelephium telephium 'Strawberries and Cream'

Hylotelephium telephium (Atropurpureum Group) 'Purple Emperor'

Hypericum - TBC

Hypericum inodorum - TBC

Hypericum inodorum 'Miracle Night'

Hypericum x hidcoteense 'Hidcote;

Hypericum x hidcoteense 'Hidcote'

Idesia polycarpa

Ilex aquifolium 'Ferox'

Ilex verticillata

Illicium 'Woodland Ruby'

Illicium henryi

Indigofera amblyantha

Indigofera heterantha

Iris - TBC

Iris 'Eye of the Tiger'

Iris 'Red Zinger'

Iris 'Sky Fire'

Iris germanica

Iris germanica 'Wabash'

Iris japonica 'Variegata'

Isodon japonicus var. glaucocalyx

Isodon longitubus

Isodon longitubus 'Seijaku'

Itea virginica 'Henry's Garnet

Itea virginica 'Henry's Garnet'

Jacaranda mimosifolia

Juglans regia

Juncus effusus

Kirengeshoma koreana

Kniphofia 'Green Jade'

Kniphofia 'Nancy's Red'

Kniphofia 'Percy's Pride'

Kniphofia 'Wrexham Buttercup'

Kolkwitzia amabilis 'Pink Cloud'

Laburnum anagyroides

Lagerstroemia indica

Lamium maculatum

Larix kaempferi

Lathyrus latifolius

Lespedeza thunbergii

Leucanthemum x superbum

Leycesteria formosa 'Golden Lanterns'

Libertia grandiflora

Lilium 'Star Gazer'

Linaria purpurea

Lindera benzoin

Lindera obtusiloba

Liquidambar styraciflua

Liquidambar styraciflua 'Silver King'

Liriodendron tulipifera

Liriodendron tulipifera 'Aureomarginatum'

Liriope muscari

Liriope muscari 'Ingwersen'

Lobelia sessilifolia

Lobelia siphilitica 'Alba'

Lobelia tupa

Lomatia ferruginea

Lomatia tinctoria

Lonicera caerulea

Lophomyrtus x ralphii 'Magic Dragon'

Loropetalum chinense

Loropetalum chinense 'Ming Dynasty'

Loropetalum chinense var. rubrum 'Fire Dance'

Loropetalum chinense var. rubrum 'Pearl'

Loropetalum chinense var. rubrum 'Pipa's Red'

Luma apiculata

Lupinus arboreus

Lupinus x regalis Russell Group

Lychnis flos-cuculi

Lysimachia clethroides

Lysimachia congestiflora 'Persian Chocolate'

Macleaya cordata

Macleaya microcarpa 'Spetchley Ruby'

Maclura pomifera

Magnolia 'Bid Dude'

Magnolia 'Black Tulip'

Magnolia 'Brixton Belle'

Magnolia 'Cameo'

Magnolia 'Cleopatra'

Magnolia 'Daphne'

Magnolia 'David Clulow'

Magnolia 'Elizabeth'

Magnolia 'Emperor'

Magnolia 'Fairy Blush'

Magnolia 'Fairy Cream'

Magnolia 'Felix Jury'

Magnolia 'Genie'

Magnolia 'Honey Tulip'

Magnolia 'Judy Zuk'

Magnolia 'March til Frost'

Magnolia 'Pink Pyramid'

Magnolia 'Raspberry Ice'

Magnolia 'Royal Star'

Magnolia 'Savage Splendour'

Magnolia 'Star Wars'

Magnolia 'Sunsation'

Magnolia 'Susan'

Magnolia 'Vulcan'

Magnolia 'Yaeko'

Magnolia 'Yellow Bird'

Magnolia 'Yellow Lantern'

Magnolia campbellii 'Darjeeling'

Magnolia delavayi

Magnolia denudata

Magnolia figo

Magnolia fulva var. calcicola

Magnolia grandiflora

Magnolia insignis

Magnolia laevifolia 'Gail's Favourite'

Magnolia liliiflora 'Nigra'

Magnolia macrophylla

Magnolia sprengeri var. Diva

Magnolia stellata

Magnolia tripetala

Magnolia virginiana 'Moonglow'

Magnolia x loebneri 'Leonard Messel'

Magnolia x soulangeana 'Lennei'

Mahonia eurybracteata 'Narihira'

Mahonia eurybracteata subsp. ganpinensis 'Soft Caress'

Mahonia nitens 'Cabaret'

Mahonia x media 'Charity'

Maianthemum racemosum

Malva x clementii 'Burgundy Wine'

Matteuccia struthiopteris

Melianthus major

Melissa officinalis

Mentha spicata

Mertensia virginica

Mespilus germanica

Meterosideros excelsa

Miscanthus sinensis

Monarda - TBC

Monarda 'Beauty of Cobham'

Monarda 'Jacob Cline'

Morus nigra

Muehlenbergia capillaris

Myoporum laetum

Myrtus communis

Myrtus communis subsp. tarentina

Nandian domestica 'Obsessed'

Nandina domestica

Neillia affinis

Nepeta govaniana

Nepeta racemosa 'Walker's Low'

Nerium oleander

Nigella damascena

Nothofagus antarctica

Notholithocarpus densiflorus var. densiflorus

Nyssa sylvatica

Oemleria cerasiformis

Oenothera lindheimeri

Oenothera stricta 'Sulphurea'

Olearia phlogopappa

Olearia virgata

Olearia x haastii

Olearia x scilloniensis

Onoclea sensibilis

Origanum laevigatum 'Herrenhausen'

Osmanthus armatus

Osmanthus fragrans

Osmanthus fragrans f. aurantiacus

Osmanthus serrulatus

Osmanthus x burkwoodii

Osmunda regalis

Oxydendron arboreum

Ozothamnus rosmarinifolius

Ozothamnus rosmarinifolius 'Silver Jubilee'

Pachyphragma macrophyllum

Pachystegia insignis

Parahebe 'Pink Avalanche'

Paris quadrifolia

Parrotia persica

Paulownia tomentosa

Peltoboykinia watanabei

Pennisetum macrourum

Penstemon 'Raven' (Bird Series)

Penstemon 'Schoenholzeri'

Penstemon digitalis 'Husker Red'

Persicaria 'Purple Fantasy'

Persicaria amplexicaulis 'Inverleith'

Persicaria filiformis

Persicaria microcephala 'Red Dragon'

Persicaria virginiana (Variegated Group) 'Painter's Palette'

Philadelphus coronarius

Phillyrea angustifolia

Phillyrea angustifolia

Phlomis fruticosa

Phlomis russeliana

Phlomis samia

Phlox paniculata - pink

Phormium 'Jester'

Phormium 'Maori Queen'

Phormium 'Yellow Wave'

Photinia 'Red Robin'

Phygelius aequalis 'Yellow Trumpet'

Phygelius capensis

Physocarpus opulifolius 'Dart's Gold'

Physocarpus opulifolius 'Diablo'

Physocarpus opulifolius 'Lady in Red'

Physostegia virginiana 'Vivid'

Picea abies

Picea omorika

Picea pungens 'Hoopsii'

Picrasma quassioides

Pinellia tripartita

Pinus - TBC

Pinus aristata

Pinus banksiana

Pinus bungeana

Pinus jeffreyi

Pinus pinea

Pinus ponderosa

Pinus radiata

Pinus strobus

Pinus taeda

Pinus wallichiana

Pistacia lentiscus

Pittosporum eugenioides 'Variegatum'

Pittosporum tenuifolium 'Abbotsbury Gold'

Pittosporum tenuifolium 'Gold Star'

Pittosporum tenuifolium 'Green Elf'

Pittosporum tenuifolium 'Silver Queen'

Pittosporum tobira

Podocarpus salignus

Podophyllum peltatum

Podophyllum versipelle 'Spotty Dotty'

Polygala myrtifolia

Polygonatum x hybridum

Polypodium vulgare

Polystichum acrostichoides

Polystichum braunii

Polystichum munitum

Polystichum polyblepharum

Polystichum rigens

Polystichum tsussimense

Poncirus trifoliata

Pond plants - TBC

Potentilla fruticosa 'Goldfinger'

Potentilla nepalensis 'Miss Willmott' - TBC

Prostanthera cuneata

Prostanthera rotundifolia

Prunus 'California'

Prunus 'Colt'

Prunus 'Victoria'

Prunus avium

Prunus caroliniana

Prunus spinosa

Pseudopanax crassifolium

Pseudopanax ferox

Pseudopanax laetus

Pseudotsuga menziesii

Pseudowintera colorata

Psidium cattleyanum (red)

Psidium cattleyanum (yellow)

Ptelea trifoliata

Pterostyrax hispidus

Pulmonaria 'Blue Ensign'

Pulmonaria 'Sissinghurst White'

Punica granatum

Punica granatum 'Nana'

Punica granatum var. nana

Pycnanthemum flexuosum

Pycnanthemum muticum

Pyracantha coccinea

Pyrus - TBC

Pyrus communis 'Packham's Triumph'

Quercus - TBC

Quercus agrifolia

Quercus alba

Quercus bicolor

Quercus canariensis

Quercus cerris

Quercus cerris 'Argenteovariegata'

Quercus chrysolepsis

Quercus coccifera

Quercus coccinea

Quercus garryana

Quercus ilex

Quercus imbricaria

Quercus kelloggii

Quercus macrocarpa

Quercus marilandica

Quercus mexicana

Quercus myrsinifolia

Quercus nigra

Quercus pagoda

Quercus palustris

Quercus phellos

Quercus polymorpha

Quercus pyrenaica

Quercus rhysophylla

Quercus robur

Quercus rubra

Quercus shumardii

Quercus suber

Quercus velutina

Quercus virginiana

Rehderodendron macrocarpum

Rhaphiolepis - TBC

Rhaphiolepis x delacourii - TBC

Rhododendron - orange hybrid - TBC

Rhododendron - pink azalea - TBC

Rhododendron 'Cosmopolitan'

Rhododendron 'Cunningham's White'

Rhododendron 'Lord Roberts'

Rhododendron 'Marcel Menard'

Rhododendron 'Nova Zembla'

Rhododendron 'Percy Wiseman'

Rhododendron 'Sappho'

Rhododendron 'Wilgen's Ruby'

Rhodoendron yellow - TBC

Rhus glabra 'Laciniata'

Rhus typhina 'Dissecta'

Ribes odoratum

Ribes sanguineum

Robinia hispida

Robinia pseudoacacia

Romneya coulteri

Rosa 'Agnes'

Rosa 'Alberic Barbier'

Rosa 'Albertine'

Rosa 'Aloha'

Rosa 'Anna Pavlova'

Rosa 'Belle de Crecy'

Rosa 'Bloomfield Abundance'

Rosa 'Blue Moon'

Rosa 'Blush Noisette'

Rosa 'Bobbie James'

Rosa 'Bon Silene'

Rosa 'Buff Beauty'

Rosa 'Cantabrigiensis'

Rosa 'Cardinal de Richelieu'

Rosa 'Cerise Bouquet'

Rosa 'Chapeau de Napoleon'

Rosa 'Charles de Mills'

Rosa 'Charlotte'

Rosa 'Complicata'

Rosa 'Comte de Chambord'

Rosa 'Crepuscule'

Rosa 'Crown Princess Margareta'

Rosa 'Darcey Bussell'

Rosa 'Doktor Eckener'

Rosa 'Eddie's Jewel'

Rosa 'Elaine Paige'

Rosa 'Enfant de France'

Rosa 'Fantin Latour'

Rosa 'Fantin-Latour'

Rosa 'Felicia'

Rosa 'Ferdinand Pichard'

Rosa 'Fountain'

Rosa 'Fragrant Cloud'

Rosa 'Fru Dagmar Hastrup'

Rosa 'Geranium'

Rosa 'Gertrude Jekyll'

Rosa 'Golden Wings'

Rosa 'Graham Thomas'

Rosa 'Great Maiden's Blush'

Rosa 'Hansa'

Rosa 'Honorine de Brabant'

Rosa 'Iceberg'

Rosa 'Indigo'

Rosa 'Ispahan'

Rosa 'Jacques Cartier'

Rosa 'Jaques Cartier'

Rosa 'Julio Iglesias'

Rosa 'Just Joey'

Rosa 'Koenigin von Daenemark'

Rosa 'L'aimant'

Rosa 'Lady Curzon'

Rosa 'Lady Emma Hamilton'

Rosa 'Lady Waterlow'

Rosa 'Le Vesuve'

Rosa 'Leda'

Rosa 'Lili Marlene'

Rosa 'Line Renaud'

Rosa 'Louise Odier'

Rosa 'Madame Hardy'

Rosa 'Madame Isaac Pereire'

Rosa 'Maman Cochet'

Rosa 'Margaret Merril'

Rosa 'Marguerite Hilling'

Rosa 'Martin Frobisher'

Rosa 'Mermaid'

Rosa 'Mme Alfred Carriere'

Rosa 'Mme Isaac Pereire'

Rosa 'Mrs John Laing'

Rosa 'Munstead Wood'

Rosa 'Mutabilis'

Rosa 'Nevada'

Rosa 'Pau Casals'

Rosa 'Pax'

Rosa 'Peace'

Rosa 'Penelope'

Rosa 'Pleine de grace'

Rosa 'President de Seze'

Rosa 'Prosperity'

Rosa 'Queen Elizabeth'

Rosa 'Rambling Rector'

Rosa 'Reine des violettes'

Rosa 'Reine Victoria'

Rosa 'Rose du roi'

Rosa 'Rosemary Harkness'

Rosa 'Roseraie de l'Hay'

Rosa 'Salet'

Rosa 'Sally Holmes'

Rosa 'Savoy Hotel'

Rosa 'Scabrosa'

Rosa 'Scharlachglut'

Rosa 'Sophie's Perpetual'

Rosa 'Southampton'

Rosa 'Souvenir de la Malmaison'

Rosa 'Souvenir du Docteur Jamain'

Rosa 'Stanwell Perpetual'

Rosa 'Tchaikovsky'

Rosa 'Therese Bugnet'

Rosa 'Tuscany Superb'

Rosa 'Vanguard'

Rosa 'Velvet Fragrance'

Rosa 'Westerland'

Rosa 'William Baffin'

Rosa 'William Lobb'

Rosa 'Yolande d'Aragon'

Rosa 'Zephirine Drouhin'

Rosa banksiae 'Lutea'

Rosa blanda

Rosa californica 'Plena'

Rosa chinensis

Rosa davidii

Rosa fedtschenkoana

Rosa filipes 'Kiftsgate'

Rosa forrestiana

Rosa gallica

Rosa gallica 'Versicolor'

Rosa gallica var. officinalis

Rosa glauca

Rosa laevigata

Rosa nitida

Rosa nutkana

Rosa roxburghii

Rosa rugosa (double pink)

Rosa sericea subsp. omeiensis f. pteracantha

Rosa soulieana

Rosa sweginzowii

Rosa virginiana

Rosa wichurana

Rosa willmottiae

Rosa woodsii var. fendleri

Rosa x alba 'Alba Maxima'

Rosa x alba 'Alba Semiplena'

Rosa x damascena var. semperflorens

Rosa x harisonii

Rosa x odorata 'Mutabilis'

Rosa x richardii

Rosa' Charles de Gaulle'

Rostrinucula dependens

Rubus odoratus

Rudbeckia 'Cherry Brandy'

Rudbeckia fulgida var. sullivantii 'Goldsturm'

Rudbeckia laciniata 'Herbstsonne'

Rudbeckia subtomentosa 'Henry Eilers'

Ruta graveolens

Salvia - TBC

Salvia 'Phyllis' Fancy'

Salvia 'Sierra de Mariola' - TBC

Salvia glutinosa - TBC

Salvia involucrata 'Bethellii'

Salvia leucantha

Salvia officinalis

Salvia rosmarinus

Salvia sclarea var. turkestanica

Salvia yangii

Sambucus nigra 'Black Lace'

Sanguisorba 'Tanna'

Sanguisorba hakusanensis

Sanguisorba obtusa

Sanguisorba tenuifolia var. alba

Sarcococca confusa

Saruma henryi

Sassafras albidum

Schizachyrium scoparium

Sciadopitys verticillata

Scutellaria incana

Sequioadendron giganteum

Sequoia sempervirens

Sequoia sempervirens

Sequoiadendron giganteum

Seseli gummiferum

Silene coronaria 'Alba'

Sinojackia xylocarpa

Solanum laxum 'Album'

Sophora microphylla 'Sun King'

Sorbaria sorbifolia 'Sem'

Sorbus aria

Sorbus aucuparia

Spartium junceum

Sphaeropteris/Cyathea cooperi

Spiraea 'Arguta'

Spiraea douglasii

Spiraea japonica

Spiraea japonica 'Anthony Waterer'

Spiraea x vanhouttei

Stachys byzantina

Stachyurus praecox

Stewartia pseudocamellia Koreana Group

Stewartia rostrata

Stipa gigantea

Stipa pseudoichu

Stipa tenuissima

Styphnolobium japonicum

Styrax japonicus

Styrax obassia

Symphoricarpos albus

Symphytum 'Goldsmith'

Symphytum 'Hidcote Blue'

Syringa - TBC

Syringa vulgaris

Tasmannia lanceolata

Taxodium distichum

Taxus baccata

Taxus baccata 'Fastigiata'

Tetradium daniellii

Tetrapanax papyrifer 'Rex'

Teucrium fruticans

Thalictrum delavayi

Thalictrum flavum

Tiarella 'Morning Star'

Tiarella 'Running Tiger'

Tiarella 'Tiger Stripe'

Tiarella cordifolia 'Appalachian Trail'

Tiarella cordifolia 'Brandywine'

Tillandsia usneoides

Trachelospermum jasminoides

Tradescantia (Andersoniana Group) 'Bilberry Ice'

Tradescantia (Andersoniana Group) 'Blue and Gold'

Tradescantia (Andersoniana Group) 'Concord Grape'

Tradescantia (Andersoniana Group) 'Domaine de Courson'

Tradescantia (Andersoniana Group) 'Innocence'

Tradescantia (Andersoniana Group) 'Osprey'

Trautvetteria caroliniensis

Tricyrtis 'Blue Wonder'

Tricyrtis 'Empress'

Tricyrtis 'Nigra'

Tricyrtis formosana 'Adbane'

Tricyrtis formosana 'Autumn Glow'

Tricyrtis formosana 'Dark Beauty'

Tricyrtis hirta

Tricyrtis hirta 'Miyazaki'

Tricyrtis hirta 'Sinonome'

Tricyrtis macropoda

Tsuga canadensis

Ugni molinae

Vaccinium 'Bluegold'

Vaccinium 'Chandler'

Vaccinium 'Duke'

Vaccinium 'Hortblue Petite'

Vaccinium 'Ozark Blue'

Vaccinium 'Patriot'

Vaccinium 'Pink Lemonade'

Vaccinium corymbosum

Vaccinium corymbosum

Valeriana officinalis

Verbascum 'Cotswold Queen'

Verbascum chaixii 'Album'

Verbascum sp.

Verbena bonariensis

Vernonia baldwinii

Vernonia missurica

Vernonia noveboracensis 'White Lightning'

Veronica - TBC

Veronica ochracea 'James Stirling'

Veronicastrum - TBC

Veronicastrum virginicum 'Fascination'

Viburnum davidii

Viburnum farreri

Viburnum nudum 'Brandywine'

Viburnum nudum 'Pink Beauty'

Viburnum opulus 'Roseum'

Viburnum plicatum f. tomentosum 'Mariesii'

Viburnum rhytidophyllum 'Willowwood'

Viburnum sargentii 'Onondaga'

Viburnum tinus 'Eve Price'

Viburnum trilobum

Vitex agnus-castus

Vitex trifolia 'Purpurea'

Weigela florida

Weigela middendorffiana

Westringia fruticosa

Wisteria - TBC

Wisteria sinensis - TBC

Wollemia nobilis

Woodsia obtusa

Xanthoceras sorbifolium

Zanthoxylum piperitum