Beginning with: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Acanthus mollis
Acanthus spinosus
Achillea filipendulina ‘Cloth of Gold’
Achillea millefolium ‘Cassis’
Achillea ‘Terracotta’
Aconitum carmichaelii ‘Arendsii’
Aconitum ‘Spark’s Variety’
Actaea simplex Atropurpurea Group
Agastache rugosa ‘Liquorice Blue’
Alchemilla mollis
Amsonia orientalis
Amsonia tabernaemontana ‘Storm Cloud’
Amsonia tabernaemontana var. salicifolia
Anaphalis triplinervis
Anemone hupehensis “September Charm”
Anemone x hybrida ‘Königin Charlotte’
Anemone x hybrida ‘Whirlwind’
Anthriscus sylvestris ‘Ravenswing’
Artemisia ‘Powis Castle’
Aruncus dioicus
Aruncus dioicus ‘Horatio’
Asclepias incarnata
Aster divaricatus
Aster dumosus ‘Wood’s Blue’
Aster × frikartii ‘Mönch’
Aster laevis ‘Calliope’
Aster lateriflorus ‘Lady In Black’
Aster ‘Little Carlow’
Aster novae-angliae ‘Andenken an Alma Pötschke’
Aster novae-angliae ‘Barr’s Blue’
Aster novae-angliae ‘Barr’s Pink’
Aster novae-angliae ‘Harrington’s Pink’
Aster novi-belgii ‘Blue Lagoon’
Aster novi-belgii ‘Fellowship’
Aster novi-belgii ‘Tonga’
Aster umbellatus
Aster ‘Vasterival’
Astilbe chinensis var. taquetii ‘Purpurlanze’
Astrantia major
Astrantia major ‘Claret’
Astrantia major ‘Gill Richardson
Astrantia major ‘Ruby Wedding’
Astrantia ‘Roma’
Astrantia maxima
Baptisia ‘Blueberry Sundae’
Bergenia cordifolia
Bergenia purpurea
Berkheya purpurea
Campanula carpatica
Campanula latifolia
Centaurea montana
Centranthus ruber
Ceratostigma plumbaginoides
Chamerion angustifolium ‘Album’
Chamerion angustifolium ‘Stahl Rose’
Cynara cardunculus
Dianthus carthusianorum
Dianthus cruentus
Dianthus deltoides ‘Flashing Light’
Echinacea purpurea
Echinacea purpurea ‘Magnus’
Echinops ritro
Epimedium x perralchicum
Epimedium x rubrum
Epimedium x versicolor ‘Sulphureum’
Erigeron karvinskianus
Eryngium agavifolium
Eryngium bourgatii
Eryngium eburneum
Eryngium pandanifolium
Eryngium planum
Eupatorium maculatum ‘Atropurpureum’
Eupatorium maculatum ‘Riesenschirm’
Euphorbia characias subsp. wulfenii
Euphorbia × martini
Ferula communis
Filipendula rubra ‘Venusta’
Foeniculum vulgare
Foeniculum vulgare ‘Giant Bronze’
Galega officinalis
Gaura lindheimeri ‘Summer Emotions’
Gaura lindheimeri ‘Rosyjane’
Gaura lindheimeri ‘Whirlng Butterflies’
Geranium ‘Dragon Heart’
Geranium macrorrhizum
Geranium macrorrhizum ‘Ingwersen’s Variety’
Geranium x oxonianum
Geranium x oxonianum ‘Wargrave Pink’
Geranium palmatum
Geranium ‘Patricia’
Geranium psilostemon
Geranium ‘Rozanne’
Gillenia trifoliata
Gladiolus papilio ‘Ruby’
Gunnera manicata
Helenium autumnale ‘Helena Red Shades’
Helenium ‘Baudirektor Linne’
Helenium ‘Moerheim Beauty’
Helenium ‘Sahin’s Early Flowerer’
Helianthus ‘Lemon Queen’
Helianthus salicifolius
Hellebore orientalis hybrids
Hemerocallis ‘American Revolution’
Hosta ‘Sum and Substance’
Kirengeshoma palmata
Knautia arvensis
Knautia macedonica
Kniphofia uvaria
Lamium galeobdelum
Lavandula angustifolia ‘Hidcote’
Liatris spicata
Libertia grandiflora
Ligularia dentata ‘Desdemona’
Limonium gmellinie ‘Dazzle Rocks’
Limonium latifolium
Liriope muscari
Lysimachia clethroides
Lysimacia ephemerum
Lythrum salicaria ‘Blush’
Lythrum salicaria ‘Feuerkerze’
Lythrum salicaria ‘Robin’
Lythrum virgatum ‘Dropmore Purple’
Macleaya cordata
Monarda ‘Beauty of Cobham’
Monarda ‘Gardenview Scarlet’
Monarda ‘Gewitterwolke’
Monarda ‘On Parade’
Monarda ‘Raspberry Wine’
Monarda ‘Vintage Wine’
Nepeta parnassica
Nepeta racemosa ‘Walker’s Low’
Nepeta ‘Six Hills Giant’
Ophiopogon planiscapus ‘Nigrescens’
Origanum laevigatum ‘Herrenhausen’
Origanum ‘Rosenküppel’
Penstemon digitalis ‘Husker Red’
Perovskia ‘Blue Spire’
Persicaria affinis ‘Donald Lowndes’
Persicaria amplexicaulis atrosanguinea
Persicaria amplexicaulis ‘Inverleith’
Persicaria amplexicaulis ‘Rosea’
Persicaria bistorta superba
Persicaria milletii
Persicaria polymorpha
Phlomis russeliana
Phlomis tuberosa ‘Amazone’
Phlox carolina ‘Bill Baker’
Phlox paniculata ‘Blue Paradise’
Phlox paniculata ‘Cardinal’
Phlox paniculata ‘Starfire’
Phlox paniculata ‘Windsor’
Polygonatum multiflorum
Potentilla nepalensis ‘Miss Willmott’
Potentilla thurberi ‘Monarch’s Velvet’
Pulmonaria
Rheum palmatum ‘Rubrum’
Rudbeckia fulgida ‘Goldsturm’
Rudbeckia laciniata ‘Herbstsonne’
Rudbeckia maxima
Salvia ‘Amante’
Salvia ‘Amistad’
Salvia microphylla ‘Royal Bumble’
Salvia nemorosa ‘Caradonna’
Salvia nemorosa ‘Ostfriesland’
Salvia x superba
Salvia verticillata ‘Purple Rain’
Sanguisorba ‘Blackthorn’
Sanguisorba officinalis
Sanguisorba menziesii
Sanguisorba tenuifolia Alba
Sanguisorba tenuifolia ‘Pink Elephant’
Scabiosa caucasica ‘Clive Greaves’
Scabiosa Caucasica Fama Blue
Sedum ‘Herbstfreude’
Sedum ‘Matrona’
Selinum wallichianum
Silene dioica
Silphium perfoliatum
Smilacina racemosa
Solidago ‘Goldkind’
Solidago rugosa ‘Fireworks’
Solidago ‘Yellow Springs’
Stachys monieri ‘Hummelo’
Stachys officinalis ‘Rosea’
Stachys ‘Summer Crush’
Succisa pratensis
Symphyotrichum x amethystinus ‘Freiburg’
Symphytum Goldsmith
Tellima grandiflora
Teucrium hircanicum
Thalictrum aquilegiifolium
Thalictrum delavayi
Thalictrum ‘Elin’
Thalictrum rochebrunianum
Trifolium rubens
Trillium cuneatum
Trillium grandiflorum
Trillium luteum
Valeriana pyrenaica
Verbascum chaixii ‘Album’
Verbascum olympicum
Verbena bonariensis
Verbena hastata ‘Rosea’
Verbena officinalis var. grandiflora ‘Bampton’
Vernonia crinita ‘Mammuth’
Vernonia lettermannii
Veronicastrum sibiricum
Veronicastrum virginicum ‘Apollo’
Veronicastrum virginicum ‘Fascination’
Veronicastrum virginicum f. roseum ‘Pink Glow’
Veronicastrum virginicum ‘Lavendelturm’
Veronicastrum virginicum var. incarnatum
Vinca major
Vinca minor
Prairie Planting in Welwyn Garden City 