Abelia x grandiflora AGM
Abelia schumannii
Abutilon megapotamicum AGM
Acacia baileyana ‘Purpurea’ AGM
Acacia dealbata AGM
Acacia pravissima
Acca sellowiana (F)
Acer campestre AGM
Acer ginnala AGM
Acer griseum AGM
Acer grosseri
Acer palmatum
Acer palmatum ‘Atropurpureum’
Acer palmatum var. dissectum AGM
Acer palmatum var. dissectum ‘Atropurpureum’
Acer palmatum ‘Garnet’ AGM
Acer palmatum ‘Osakazuki’ AGM
Acer palmatum ‘Sango-kaku’ AGM
Acer platanoides AGM
Acer platanoides ‘Crimson King’ AGM
Acer platanoides ‘Crimson Sentry’
Acer platanoides ‘Drummondii’ (v) AGM
Acer pseudoplatanus
Acer pseudoplatanus ‘Brilliantissimum’ AGM
Acer pseudoplatanus ‘Prinz Handjéry’
Acer pseudoplatanus 'Simon-Louis Fréres'
Acer pseudoplatanus ‘Worleei’ AGM
Acer rubrum
Acer rubrum October Glory AGM
Acer rufinerve AGM
Acer saccharinum AGM
Acer shirasawanum ‘Aureum’ AGM
Acer sieboldianum
Aesculus hippocastanum AGM
Aesculus parviflora AGM
Alnus cordata AGM
Alnus glutinosa
Aloysia triphylla AGM
Amelanchier canadensis
Amelanchier laevis
Amelanchier lamarckii AGM
Arbutus unedo AGM
Arbutus unedo f. rubra AGM
Arctostaphylos uva-ursi
Aronia x prunifolia ‘Brilliant’
Aucuba japonica ‘Crotonifolia’ (f/v) AGM
Aucuba japonica ‘Variegata’ (f/v)
Azara lanceolata
Azara microphylla AGM
Azara petiolaris
Berberis buxifolia ‘Pygmaea’
Berberis candidula
Berberis gagnepainii var. lanceifolia
Berberis linearifolia ‘Orange King’
Berberis x stenophylla AGM
Berberis x stenophylla ‘Irwinii’
Berberis thunbergii f. atropurpurea
Berberis thunbergii ‘Atropurpurea Nana’ AGM
Berberis thunbergii ‘Helmond Pillar’
Berberis thunbergii ‘Rose Glow’ (v) AGM
Berberis verruculosa AGM
Berberis wilsoniae AGM
Betula ermanii
Betula nigra AGM
Betula papyrifera
Betula pendula AGM
Betula pendula ‘Laciniata’ AGM
Betula pendula ‘Tristis’ AGM
Betula pubescens
Betula utilis var. jacquemontii
Brachyglottis ‘Sunshine’ AGM
Buddleja alternifolia AGM
Buddleja davidii ‘Black Knight’ AGM
Buddleja davidii ‘Fascinating’
Buddleja davidii ‘Nanho Purple’
Buddleja davidii ‘Peace’
Buddleja davidii ‘Royal Red’ AGM
Buddleja x weyeriana ‘Golden Glow’
Buxus sempervirens
Buxus sempervirens ‘Elegantissima’ (v) AGM
Buxus sempervirens ‘Handsworthii’
Buxus sempervirens ‘Suffruticosa’ AGM
Calamagrostis arundinacea
Callicarpa giraldii ‘Profusion’ AGM
Callistemon citrinus
Callistemon linearis AGM
Callistemon rigidus
Callistemon salignus AGM
Calluna vulgaris ‘Beoley Gold’ AGM
Calluna vulgaris ‘Blazeaway’
Calluna vulgaris ‘County Wicklow’ (d) AGM
Calluna vulgaris ‘Darkness’ AGM
Calluna vulgaris ‘Gold Haze’ AGM
Calluna vulgaris ‘H.E. Beale’ (d)
Calluna vulgaris ‘J.H. Hamilton’ (d) AGM
Calluna vulgaris ‘Kinlochruel’ (d) AGM
Calluna vulgaris ‘Robert Chapman’ AGM
Calocedrus decurrens AGM
Camellia sasanqua 'Alba'
Camellia japonica ‘Adolphe Audusson’ AGM
Camellia japonica ‘Black Lace’
Camellia japonica ‘Bob Hope’
Camellia japonica ‘Charlotte de Rothschild’
Camellia x williamsii ‘Debbie’ AGM
Camellia × williamsii 'Elsie Jury'
Camellia japonica 'Hakurakuten'
Camellia × williamsii 'J.C Williams'
Camellia japonica 'Joseph Pfingstl'
Camellia x williamsii ‘Jury's Yellow’
Camellia japonica 'K. Sawada'
Camellia japonica 'Lady Campbell'
Camellia japonica 'Lavinia Maggi'
Camellia japonica 'Joseph Pfingstl'
Camellia 'Leonard Messel' (reticulata x (x williamsii))
Camellia reticulata 'Les Jury'
Camellia japonica ‘Mathiona Alba’
Camellia japonica ‘Midnight’
Camellia japonica ‘Nobilissima’
Camellia japonica 'Nuccio's Pearl'
Camellia sasanqua 'Peach Blossom'
Camellia japonica 'R.L. Wheeler'
Camellia × williamsii 'Saint Ewe'
Camellia japonica 'Sensation'
Camellia japonica 'Silver Anniversary'
Camellia × williamsii 'William Carlyon'
Camellia × williamsii 'Water Lily' AGM
Campsis x tagliabuana
Caragana arborescens ‘Pendula’
Carpinus betulus AGM
Caryopteris x clandonensis
Caryopteris x clandonensis ‘Arthur Simmonds’
Caryopteris x clandonensis ‘Heavenly Blue’ AGM
Caryopteris x clandonensis ‘Worcester Gold’
Catalpa bignonioides AGM
Catalpa bignonioides ‘Aurea’ AGM
Catananche caerulea
Ceanothus arboreus ‘Trewithen Blue’ AGM
Ceanothus ‘Autumnal Blue’ AGM
Ceanothus ‘Blue Mound’ AGM
Ceanothus ‘Burkwoodii’ AGM
Ceanothus ‘Cascade’ AGM
Ceanothus x delileanus ‘Gloire de Versailles’ AGM
Ceanothus impressus
Ceanothus x lobbianus
Ceanothus ‘Southmead’ AGM
Ceanothus thyrsiflorus
Ceanothus thyrsiflorus var. repens AGM
Cephalaria gigantea
Ceratostigma plumbaginoides AGM
Ceratostigma willmottianum AGM
Cercidiphyllum japonicum AGM
Cercis canadensis
Cercis canadensis ‘Forest Pansy’ AGM
Cercis Siliquatstrum
Chaenomeles speciosa ‘Moerloosei’ AGM
Chaenomeles speciosa ‘Nivalis’
Chaenomeles x superba ‘Boule de Feu’
Chaenomeles x superba ‘Crimson and Gold’ AGM
Chaenomeles x superba ‘Pink Lady’ AGM
Chiastophyllum oppositifolium AGM
Chimonanthus praecox
Choisya ‘Aztec Pearl’ AGM
Choisya ternata AGM
Choisya ternata ‘Lich’ Sundance AGM
Cistus x aguilarii
Cistus x dansereaui ‘Decumbens’ AGM
Cistus x hybridus AGM
Cistus ladanifer L. AGM
Cistus x pulverulentus AGM
Cistus x purpureus AGM
Cistus x skanbergii AGM
Clerodendrum trichotomum
Clerodendrum trichotomum var. fargesii AGM
Clethra alnifolia ‘Rosea’
Colletia hystrix
Convolvulus cneorum AGM
Cordyline australis AGM
Cornus alba ‘Aurea’ AGM
Cornus alba ‘Elegantissima’ (v) AGM
Cornus alba ‘Spaethii’ (v) AGM
Cornus alternifolia ‘Argentea’ (v) AGM
Cornus canadensis AGM
Cornus capitata
Cornus controversa ‘Variegata’ AGM
Cornus florida ‘Cherokee Chief’ AGM
Cornus kousa var. chinensis AGM
Cornus mas AGM
Cornus sanguinea
Cornus sanguinea ‘Midwinter Fire’
Cornus stolonifera ‘Flaviramea’ AGM
Corokia cotoneaster
Corokia x virgata
Coronilla valentina glauca
Coronilla valentina Citrina AGM
Correa backhouseana AGM
Correa pulchella
Corylopsis pauciflora AGM
Corylopsis f. veitchiana
Corylus avellana ‘Aurea’
Corylus avellana ‘Contorta’ AGM
Corylus avellana (F)
Corylus maxima (F)
Corylus maxima ‘Purpurea’ (F) AGM
Cotinus coggygria AGM
Cotinus coggygria ‘Royal Purple’ AGM
Cotinus ‘Grace’ AGM
Cotoneaster atropurpureus 'Variegatus'
Cotoneaster bullatus AGM
Cotoneaster congestus ‘Nanus’
Cotoneaster dammeri AGM
Cotoneaster frigidus ‘Cornubia’ AGM
Cotoneaster horizontalis AGM
Cotoneaster microphyllus Wallich ex Lindley AGM
Cotoneaster salicifolius ‘Rothschildianus’ AGM
Cotoneaster simonsii AGM
Crassula sarcocaulis
Crataegus laevigata ‘Paul's Scarlet’ (d) AGM
Crataegus laevigata ‘Rosea Flore Pleno’ (d) AGM
Crataegus x lavalleei
Crataegus monogyna
Crataegus persimilis ‘Prunifolia’ AGM
Crinodendron hookerianum AGM
Cryptomeria japonica Elegans Group
Cryptomeria japonica ‘Elegans Aurea’
Cryptomeria japonica ‘Nana’
Cytisus battandieri AGM
Cytisus ‘Killiney Salmon’
Cytisus ‘Porlock’ AGM
Cytisus x praecox
Cytisus x praecox ‘Allgold’ AGM