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Knoll Gardens | plant list

504 plants listed

Acacia baileyana 'Purpurea'

Achillea [Anthea] = 'Anblo' (PBR)

Achillea 'Lachsschönheit' (Galaxy Series)

Achillea 'Paprika' (Galaxy Series)

Achillea pink-flowered from Santa Cruz Island

Achillea 'Terracotta'

Aconitum carmichaelii (Wilsonii Group) 'Barker's Variety'

Acorus calamus

Acorus gramineus 'Ogon' (v)

Agapanthus 'Arctic Star'

Agapanthus 'Blue Giant'

Agapanthus 'Dokter Brouwer'

Agapanthus 'Liam's Lilac'

Agapanthus 'Megan's Mauve'

Agapanthus 'Northern Star' (PBR)

Agapanthus 'Peter Pan' ambig.

Agapanthus 'Purple Star'

Agapanthus 'Silver Baby'

Agapanthus 'Streamline'

Agapanthus 'Sunfield'

Agapanthus 'Taw Valley'

Agapanthus 'Thumbelina'

Agapanthus white-flowered, dwarf

Agastache 'Blackadder'

Agastache rugosa 'Liquorice Blue'

Agastache 'Summer Glow' (PBR)

Ageratina altissima 'Chocolate'

Agrostis nebulosa

Ajuga reptans [Black Scallop] = 'Binblasca' (PBR)

Ammophila arenaria

Ampelodesmos mauritanica

Andropogon gerardii

Anemanthele lessoniana

Anemone hupehensis var. japonica 'Pamina'

Anemone hupehensis var. japonica 'Prinz Heinrich'

Anemone × hybrida 'Honorine Jobert'

Anemone × hybrida 'Whirlwind'

Anthemis tinctoria 'E.C. Buxton'

Anthemis tinctoria 'Sauce Hollandaise'

Arundo donax

Arundo donax 'Golden Chain' (v)

Arundo donax 'Macrophylla'

Arundo donax var. versicolor (v)

Arundo formosana

Asphodeline lutea

Astelia chathamica

Astelia nervosa 'Westland'

Aster cordifolius 'Silver Spray'

Aster divaricatus

Aster ericoides

Aster × frikartii 'Wunder von Stäfa'

Aster laevis 'Calliope'

Aster lateriflorus 'Prince'

Aster 'Little Carlow' (cordifolius hybrid)

Aster novae-angliae 'Lye End Beauty'

Aster novi-belgii 'Jenny'

Aster novi-belgii 'Schöne von Dietlikon'

Aster pyrenaeus 'Lutetia'

Aster 'Ringdove' (ericoides hybrid)

Aster turbinellus misapplied

Aster umbellatus

Astilbe chinensis var. pumila

Astilbe chinensis var. taquetii 'Purpurlanze'

Astrantia 'Buckland'

Astrantia major 'Abbey Road' (PBR)

Astrantia major subsp. involucrata 'Shaggy'

Astrantia major var. rosea George's form

Astrantia 'Moulin Rouge' (PBR)

Astrantia 'Roma' (PBR)

Bergenia 'Baby Doll'

Beschorneria yuccoides 'Quicksilver'

Bidens aurea 'Hannay's Lemon Drop'

Bothriochloa bladhii

Briza maxima

Briza media

Briza media 'Golden Bee'

Briza media 'Limouzi'

Briza media 'Russells' (PBR)

Calamagrostis × acutiflora 'Avalanche'

Calamagrostis × acutiflora 'Karl Foerster'

Calamagrostis × acutiflora 'Overdam' (v)

Calamagrostis × acutiflora 'Waldenbuch'

Calamagrostis 'Avalanche'

Calamagrostis brachytricha

Calamagrostis epigejos

Calamagrostis varia

Carex alba

Carex arenaria

Carex comans 'Frosted Curls'

Carex dipsacea

Carex dipsacea 'Dark Horse'

Carex divulsa

Carex elata 'Aurea'

Carex elata 'Knightshayes'

Carex flacca

Carex flacca 'Blue Zinger'

Carex flava

Carex 'Ice Dance' (v)

Carex morrowii 'Fisher's Form' (v)

Carex muskingumensis

Carex muskingumensis 'Little Midge'

Carex muskingumensis 'Oehme' (v)

Carex muskingumensis 'Silberstreif' (v)

Carex nigra 'On-line' (v)

Carex obnupta

Carex oshimensis [Everest] = 'Fiwhite' (PBR) (v)

Carex oshimensis 'Evergold' (v)

Carex oshimensis 'Everillo' (PBR)

Carex panicea

Carex pendula

Carex praegracilis

Carex remota

Carex secta

Carex solandri

Carex testacea

Carex trifida

Carex trifida 'Rekohu Sunrise' (PBR) (v)

Centaurea montana

Centaurea montana 'Lady Flora Hastings'

Cephalaria gigantea

Chaerophyllum hirsutum 'Roseum'

Chasmanthium latifolium

Chasmanthium latifolium 'Golden Spangles'

Chionochloa rubra

Cortaderia richardii (Endl.) Zotov

Cortaderia selloana 'Candy Floss'

Cortaderia selloana 'Evita' (PBR)

Cortaderia selloana 'Pumila'

Crocosmia × crocosmiiflora 'Star of the East'

Crocosmia 'Lucifer'

Deschampsia cespitosa

Deschampsia cespitosa 'Goldtau'

Deschampsia cespitosa 'Mill End'

Deschampsia cespitosa 'Pixie Fountain'

Deschampsia cespitosa 'Schottland'

Deschampsia cespitosa 'Tardiflora'

Deschampsia cespitosa 'Tauträger'

Deschampsia cespitosa 'Waldschatt'

Deschampsia holciformis 'Marin'

Dianella revoluta [Baby Bliss] = 'Dtn03' (PBR)

Dianella tasmanica

Dianthus carthusianorum

Dierama 'Coral Bells'

Dierama 'Lancelot'

Dierama 'Miranda'

Dierama pulcherrimum 'Merlin'

Echinacea pallida

Echinacea purpurea 'Augustkönigin'

Echinacea purpurea 'Kim's Knee High' (PBR)

Echinacea purpurea 'Kim's Mop Head'

Echinacea purpurea 'Leuchtstern'

Echinacea purpurea 'Little Magnus' (PBR)

Echinacea purpurea 'Magnus'

Echinacea purpurea 'Ruby Giant'

Echinacea purpurea 'Vintage Wine' (PBR)

Echinacea purpurea 'White Swan'

Echinacea 'Sunrise' (PBR) (Big Sky Series)

Elymus magellanicus

Equisetum hyemale

Eragrostis curvula

Eragrostis curvula 'Totnes Burgundy'

Eragrostis elliottii

Eragrostis spectabilis

Eragrostis trichodes

Erigeron karvinskianus

Eryngium pandanifolium

Eryngium planum 'Blauer Zwerg'

Eucomis comosa 'Oakhurst'

Eucomis comosa 'Sparkling Burgundy'

Eucomis vandermerwei 'Octopus'

Eupatorium fistulosum f. albidum 'Bartered Bride'

Eupatorium fortunei 'Fine Line' (v)

Eupatorium lindleyanum

Eupatorium maculatum Atropurpureum Group

Eupatorium maculatum (Atropurpureum Group) 'Glutball'

Eupatorium maculatum (Atropurpureum Group) 'Purple Bush'

Eupatorium maculatum (Atropurpureum Group) 'Riesenschirm'

Eupatorium perfoliatum

Eupatorium purpureum

Euphorbia 'Efanthia' (PBR)

Euphorbia [Excalibur] = 'Froeup' (PBR)

Euphorbia griffithii 'Dixter'

Euphorbia mellifera

Euphorbia palustris

Euphorbia [Redwing] = 'Charam' (PBR)

Fascicularia bicolor

Festuca amethystina

Festuca californica

Festuca glauca 'Elijah Blue'

Festuca glauca 'Intense Blue'

Festuca idahoensis 'Tomales Bay'

Festuca mairei

Festuca paniculata

Festuca rubra

Festuca 'Siskiyou Blue'

Filipendula purpurea

Filipendula rubra 'Venusta'

Foeniculum vulgare 'Purpureum'

Francoa sonchifolia

Francoa sonchifolia 'Pink Bouquet'

Gaura lindheimeri 'Rosyjane'

Gaura lindheimeri 'Vanilla'

Gaura lindheimeri 'Whirling Butterflies'

Geranium (Cinereum Group) 'Laurence Flatman'

Geranium [Patricia] = 'Brempat'

Geranium phaeum var. phaeum 'Samobor'

Geranium 'Philippe Vapelle'

Geranium psilostemon

Geranium psilostemon 'Bressingham Flair'

Geranium renardii

Geranium [Rozanne] = 'Gerwat' (PBR)

Geum 'Lady Stratheden' (d)

Geum 'Mrs J. Bradshaw' (d)

Hakonechloa macra

Hakonechloa macra 'Alboaurea' (v)

Hakonechloa macra 'Albovariegata' (v)

Hakonechloa macra 'All Gold'

Hakonechloa macra 'Nicolas'

Hakonechloa macra 'Samurai' (v)

Helenium 'Moerheim Beauty'

Helenium 'Rubinzwerg'

Helenium 'Sahin's Early Flowerer'

Helenium 'Waltraut'

Helianthus 'Lemon Queen'

Helictotrichon sempervirens

Hesperantha coccinea 'Fenland Daybreak'

Hesperantha coccinea 'Major'

Hesperantha coccinea 'Wilfred H. Bryant'

Heuchera 'Caramel' (PBR)

Heuchera 'Chocolate Ruffles' (PBR)

Heuchera 'Obsidian' (PBR)

Heuchera 'Plum Pudding' (PBR)

Hordeum jubatum

Hystrix patula

Imperata cylindrica 'Rubra'

Juncus effusus 'Carman's Japanese'

Juncus ensifolius

Juncus patens 'Carman's Gray'

Juncus patens 'Elk Blue'

Knautia macedonica

Kniphofia caulescens

Kniphofia 'Nancy's Red'

Kniphofia 'Tawny King'

Lagurus ovatus

Leucanthemella serotina

Leucanthemum × superbum 'Aglaia' (d)

Leucanthemum × superbum [Freak!] = 'Leuz0001'

Leymus arenarius

Libertia grandiflora

Libertia ixioides 'Goldfinger' (v)

Libertia peregrinans

Ligularia dentata 'Desdemona'

Ligularia hodgsonii

Ligularia przewalskii

Liriope muscari

Liriope muscari 'Okina' (v)

Lomandra filiformis [Savanna Blue] = 'Lmf500'

Luzula nivea

Luzula pilosa 'Igel'

Luzula sylvatica 'Aurea'

Lysimachia ciliata 'Firecracker'

Lysimachia clethroides

Lythrum salicaria

Lythrum salicaria 'Blush'

Lythrum salicaria 'Prichard's Variety'

Lythrum salicaria 'Robert'

Lythrum salicaria 'Zigeunerblut'

Macleaya microcarpa 'Kelway's Coral Plume'

Milium effusum 'Yaffle' (v)

Miscanthus 'Dronning Ingrid'

Miscanthus 'Elfin'

Miscanthus × giganteus

Miscanthus × giganteus 'Gilt Edge' (v)

Miscanthus nepalensis

Miscanthus oligostachyus 'Afrika'

Miscanthus oligostachyus 'Nanus Variegatus' (v)

Miscanthus 'Purpurascens'

Miscanthus sacchariflorus ambig.

Miscanthus sinensis 'Abundance'

Miscanthus sinensis 'Adagio'

Miscanthus sinensis 'Andante'

Miscanthus sinensis 'China'

Miscanthus sinensis 'Cindy'

Miscanthus sinensis var. condensatus 'Cabaret' (v)

Miscanthus sinensis var. condensatus 'Cosmopolitan' (v)

Miscanthus sinensis 'Dixieland' (v)

Miscanthus sinensis 'Emmanuel Lepage'

Miscanthus sinensis 'Etincelle'

Miscanthus sinensis 'Ferner Osten'

Miscanthus sinensis 'Flamingo'

Miscanthus sinensis 'Ghana'

Miscanthus sinensis 'Giraffe'

Miscanthus sinensis 'Gnome'

Miscanthus sinensis 'Gold Bar' (PBR) (v)

Miscanthus sinensis 'Goliath'

Miscanthus sinensis 'Gracillimus'

Miscanthus sinensis 'Gracillimus Nanus'

Miscanthus sinensis 'Graziella'

Miscanthus sinensis 'Haiku'

Miscanthus sinensis 'Hermann Müssel'

Miscanthus sinensis 'Kaskade'

Miscanthus sinensis 'Kleine Fontäne'

Miscanthus sinensis 'Kleine Silberspinne'

Miscanthus sinensis 'Little Kitten'

Miscanthus sinensis 'Malepartus'

Miscanthus sinensis 'Morning Light' (v)

Miscanthus sinensis 'Positano'

Miscanthus sinensis 'Professor Richard Hansen'

Miscanthus sinensis 'Red Meister'

Miscanthus sinensis 'Roland'

Miscanthus sinensis 'Rotsilber'

Miscanthus sinensis 'Septemberrot'

Miscanthus sinensis 'Silberfeder'

Miscanthus sinensis 'Starlight'

Miscanthus sinensis 'Strictus' (v)

Miscanthus sinensis 'Undine'

Miscanthus sinensis 'Variegatus' (v)

Miscanthus transmorrisonensis

Molinia 'Autumn Charm'

Molinia caerulea

Molinia caerulea subsp. arundinacea

Molinia caerulea subsp. arundinacea 'Bergfreund'

Molinia caerulea subsp. arundinacea 'Breeze'

Molinia caerulea subsp. arundinacea 'Cordoba'

Molinia caerulea subsp. arundinacea 'Karl Foerster'

Molinia caerulea subsp. arundinacea 'Skyracer'

Molinia caerulea subsp. arundinacea 'Windsaule'

Molinia caerulea subsp. arundinacea 'Windspiel'

Molinia caerulea subsp. arundinacea 'Zuneigung'

Molinia caerulea subsp. caerulea 'Dauerstrahl'

Molinia caerulea subsp. caerulea 'Edith Dudszus'

Molinia caerulea subsp. caerulea 'Poul Petersen'

Molinia caerulea subsp. caerulea 'Variegata' (v)

Muhlenbergia dumosa

Muhlenbergia lindheimeri

Muhlenbergia rigens

Nassella trichotoma

Nepeta grandiflora 'Dawn to Dusk'

Nepeta [Junior Walker] = 'Novanepjun'

Nepeta racemosa 'Walker's Low'

Ophiopogon japonicus 'Minor'

Ophiopogon planiscapus

Ophiopogon planiscapus 'Black Beard'

Ophiopogon planiscapus 'Nigrescens'

Panicum amarum 'Dewey Blue'

Panicum bulbosum

Panicum virgatum

Panicum virgatum 'Blue Tower'

Panicum virgatum 'Cloud Nine'

Panicum virgatum 'Dallas Blues'

Panicum virgatum 'Hänse Herms'

Panicum virgatum 'Heavy Metal'

Panicum virgatum 'Kupferhirse'

Panicum virgatum 'Northwind'

Panicum virgatum 'Prairie Sky'

Panicum virgatum 'Red Cloud'

Panicum virgatum 'Rotstrahlbusch'

Panicum virgatum 'Shenandoah'

Panicum virgatum 'Squaw'

Panicum virgatum 'Warrior'

Papaver orientale (Goliath Group) 'Beauty of Livermere'

Patrinia scabiosifolia

Pennisetum × advena 'Rubrum'

Pennisetum alopecuroides 'Cassian's Choice'

Pennisetum alopecuroides 'Caudatum'

Pennisetum alopecuroides 'Gelbstiel'

Pennisetum alopecuroides 'Hameln'

Pennisetum alopecuroides 'Herbstzauber'

Pennisetum alopecuroides 'Little Bunny'

Pennisetum alopecuroides 'Little Honey' (v)

Pennisetum alopecuroides 'Moudry'

Pennisetum alopecuroides 'Red Head'

Pennisetum alopecuroides f. viridescens

Pennisetum alopecuroides 'Weserbergland'

Pennisetum alopecuroides 'Woodside'

Pennisetum 'Fairy Tails'

Pennisetum macrourum

Pennisetum macrourum 'Short Stuff'

Pennisetum orientale

Pennisetum orientale 'Karley Rose' (PBR)

Pennisetum orientale 'Shogun'

Pennisetum 'Paul's Giant'

Pennisetum thunbergii 'Red Buttons'

Pennisetum villosum

Penstemon heterophyllus 'Catherine de la Mare'

Persicaria amplexicaulis

Persicaria amplexicaulis 'Alba'

Persicaria amplexicaulis 'Atrosanguinea'

Persicaria amplexicaulis 'Blackfield' (PBR)

Persicaria amplexicaulis 'Fat Domino' (PBR)

Persicaria amplexicaulis 'Firedance'

Persicaria amplexicaulis 'Firetail'

Persicaria amplexicaulis 'Inverleith'

Persicaria amplexicaulis 'JS Caliente' (PBR)

Persicaria amplexicaulis [Orange Field] = 'Orangofield' (PBR)

Persicaria amplexicaulis 'Rosea'

Persicaria amplexicaulis 'Summer Dance'

Persicaria amplexicaulis [Taurus] = 'Blotau'

Persicaria bistorta 'Superba'

Phalaris arundinacea var. picta 'Arctic Sun' (v)

Phlomis russeliana

Phlomis samia L.

Phlomis tuberosa

Phlomis tuberosa 'Amazone'

Phlomis tuberosa 'Bronze Flamingo'

Phragmites australis subsp. australis 'Variegatus' (v)

Physostegia virginiana 'Vivid'

Poa labillardierei

Potentilla 'Arc-en-ciel'

Potentilla nepalensis 'Miss Willmott'

Potentilla nepalensis 'Ron McBeath'

Potentilla thurberi 'Monarch's Velvet'

Primula vialii (So)

Rhynchospora latifolia

Rudbeckia fulgida 'City Garden'

Rudbeckia fulgida var. deamii

Rudbeckia fulgida 'Little Goldsttar'

Rudbeckia fulgida var. speciosa

Rudbeckia fulgida var. sullivantii 'Goldsturm'

Rudbeckia laciniata

Rudbeckia maxima

Rudbeckia subtomentosa 'Henry Eilers'

Saccharum arundinaceum

Salvia nemorosa 'Caradonna'

Salvia verticillata 'Purple Rain'

Sambucus nigra f. porphyrophylla 'Eva' (PBR)

Sambucus nigra f. porphyrophylla 'Gerda' (PBR)

Sanguisorba albiflora

Sanguisorba 'Blackthorn'

Sanguisorba canadensis

Sanguisorba hakusanensis

Sanguisorba menziesii

Sanguisorba officinalis

Sanguisorba officinalis 'Arnhem'

Sanguisorba 'Pink Tanna'

Sanguisorba 'Tanna'

Sanguisorba tenuifolia var. alba

Sanguisorba tenuifolia 'Pink Elephant'

Sanguisorba tenuifolia 'Purpurea'

Scabiosa caucasica var. alba

Scabiosa columbaria subsp. ochroleuca

Schizachyrium scoparium

Sedum 'Carl'

Sedum (Herbstfreude Group) 'Herbstfreude'

Sedum (Herbstfreude Group) 'Jaws' (PBR)

Sedum 'José Aubergine' (PBR)

Sedum 'Matrona'

Sedum 'Red Cauli'

Sedum rupestre 'Angelina'

Sedum spectabile (Brilliant Group) 'Brilliant'

Sedum spectabile (Brilliant Group) 'Rosenteller'

Sedum spectabile (Brilliant Group) 'Steven Ward'

Sedum spectabile 'Stardust'

Sedum 'Stewed Rhubarb Mountain'

Sedum telephium (Atropurpureum Group) 'Karfunkelstein'

Sedum telephium (Atropurpureum Group) 'Postman's Pride' (PBR)

Serratula seoanei

Sesleria autumnalis

Sesleria caerulea

Sesleria 'Greenlee'

Sesleria nitida

Setaria macrostachya

Setaria palmifolia

Sisyrinchium 'Biscutella'

Sisyrinchium 'Californian Skies'

Sisyrinchium 'Dragon's Eye'

Sisyrinchium idahoense var. bellum

Sisyrinchium idahoense var. bellum pale-flowered

Sisyrinchium idahoense var. bellum 'Rocky Point'

Sisyrinchium striatum

Spodiopogon sibiricus

Sporobolus airoides

Sporobolus heterolepis

Stachys macrantha

Stachys officinalis 'Hummelo'

Stipa barbata

Stipa calamagrostis

Stipa elegantissima

Stipa gigantea

Stipa gigantea 'Gold Fontaene'

Stipa ichu

Stipa ramosissima

Stipa tenuissima

Thalictrum 'Black Stockings'

Thalictrum 'Elin'

Tradescantia (Andersoniana Group) 'Concord Grape'

Tulbaghia 'John May's Special'

Tulbaghia 'Purple Eye'

Tulbaghia violacea

Tulbaghia violacea 'Alba'

Tulbaghia violacea 'Fine Form'

Tulbaghia violacea 'Silver Lace' (v)

Typha angustifolia

Uncinia rubra 'Belinda's Find' (PBR)

Uncinia uncinata rubra

Verbena bonariensis

Verbena bonariensis 'Lollipop' (PBR)

Veronicastrum sibiricum

Veronicastrum virginicum

Veronicastrum virginicum 'Album'

Veronicastrum virginicum 'Erica'

Veronicastrum virginicum 'Fascination'

Veronicastrum virginicum 'Lavendelturm'

Veronicastrum virginicum f. roseum 'Pink Glow'

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