Acanthus mollis

Acanthus spinosus AGM

Achillea millefolium ‘Cerise Queen’

Achillea ‘Moonshine’ AGM

Achillea The Bride

Aconitum carmichaelii ‘Arendsii’

Aconitum ‘Ivorine’

Agapanthus ‘Bressingham Blue’

Agapanthus campanulatus ‘Isis’

Agapanthus Headbourne hybrids

Allium caeruleum AGM

Allium cristophii AGM

Alstroemeria aurea

Alstroemeria aurea ‘Lutea’

Amsonia orientalis AGM

Anacyclus pyrethrum var. depressus

Anaphalis margaritacea ‘Neuschnee’

Anaphalis margaritacea var. yedoensis AGM

Anchusa azurea ‘Dropmore’

Anemone hupehensis var. japonica 'Bressingham Glow'

Anemone x hybrida ‘Honorine Jobert’ AGM

Anemone x hybrida ‘Profusion’

Anomatheca laxa

Anthemis cupaniana AGM

Anthemis tinctoria ‘Kelwayi’

Aquilegia McKana Group

Aquilegia vulgaris Vervaeneana Group (v)

Argyranthemum foeniculaceum hort.

Artemisia alba ‘Canescens’ AGM

Arum italicum

Artemisia arborescens

Aruncus dioicus

Asparagus officinalis ‘Franklim’

Asperula suberosa

Asplenium scolopendrium AGM

Aster amellus ‘Veilchenkönigin’ AGM

Aster x frikartii ‘Mönch’ AGM

Aster lateriflorus ‘Lady in Black’

Aster novae-angliae ‘Alma Pötschke’ AGM

Aster novae-angliae ‘Harrington's Pink’ AGM

Aster novae-angliae ‘Mrs S.T. Wright’

Aster novae-angliae ‘Pink Victor’

Aster novi-belgii ‘Blandie’

Aster novi-belgii ‘Davey's True Blue’

Aster novi-belgii ‘Winston S. Churchill’

Astilbe x arendsii ‘Brautschleier’ AGM

Astilbe x arendsii ‘Fanal’ AGM

Astilbe x arendsii ‘Gloria’

Astilbe chinensis ‘Superba’

Astilbe ‘Straussenfeder’

Astrantia major

Athyrium filix-femina AGM

Bergenia ‘Abendglut’

Bergenia cordifolia

Bergenia ‘Silberlicht’ AGM

Bletilla striata

Calamintha nepeta

Campanula divaricata

Campanula lactiflora ‘Loddon Anna’ AGM

Campanula persicifolia alba

Campanula persicifolia blue

Convallaria majalis AGM

Coreopsis verticillata

Coreopsis verticillata ‘Golden Gain’

Coreopsis verticillata ‘Moonbeam’

Crinum x powellii ‘Album’ AGM

Crocosmia x crocosmiiflora

Crocosmia x ‘Citronella’

Crocosmia paniculata ‘Major’

Delphinium Black Knight Group

Delphinium Blue Bird Group

Delphinium ‘Blue Jay’

Delphinium Galahad Group

Dianthus ‘Devon General’ (p) AGM

Dianthus ‘Gran's Favourite’ (p) AGM

Dianthus ‘Houndspool Cheryl’ (p) AGM

Dianthus ‘Miss Sinkins’ (p)

Dianthus ‘Widecombe Fair’ (p) AGM

Dicentra formosa

Dicentra formosa alba

Dicentra spectabilis AGM

Dictamnus albus AGM

Dierama pulcherrimum

Digitalis purpurea Excelsior Group

Digitalis purpurea Excelsior Group white

Dryopteris filix-mas AGM

Echinacea purpurea

Echinacea purpurea ‘White Swan’

Echinops ritro L. AGM

Epimedium ‘Little Shrimp’

Epimedium x perralchicum AGM

Epimedium x versicolor ‘Sulphureum’ AGM

Epimedium x warleyense

Epimedium x youngianum ‘Niveum’ AGM

Erigeron glaucus ‘Elstead Pink’

Erigeron 'Rosa Juwel'

Eryngium bourgatii

Eryngium x oliverianum AGM

Eryngium variifolium

Erysimum ‘Bowles' Mauve’ AGM

Erysimum cheiri ‘Harpur Crewe’ (d) AGM

Eupatorium ligustrinum AGM

Eupatorium purpureum

Euphorbia amygdaloides var. robbiae AGM

Euphorbia characias wulfenii AGM

Euphorbia polychroma

Felicia amelloides ‘Santa Anita’ AGM

Felicia amoena

Felicia amoena ‘Variegata’

Filipendula palmata ‘Rubra’

Filipendula rubra ‘Venusta’ AGM

Filipendula ulmaria ‘Aurea’

Filipendula vulgaris

Fragaria x ananassa ‘Variegata’ (F)

Francoa ramosa

Fritillaria meleagris AGM