Acaena inermis 'Purpurea'
New Zealand Burr
Acaena microphylla
New Zealand Burr
Acanthus mollis
Bear's Britches
Achillea m. ' Terra Cotta'
Yarrow
Achillea m. 'Paprika'
Yarrow
Achillea m. Salmon Beauty
Yarrow
Achillea ptarmica 'Angels Breath'
Yarrow
Achillea 'Red Beauty'
Yarrow
Acis autumnalis
Aconitum Carmichael II (fischeri)
Monkshood
Aconitum henryi 'Sparks'
Monkshood
Aconitum napellus
Monks Hood
Aconitum 'Red Wine'
Monkshood
Acorus gramineus minimus 'Aureus'
Sweet Flag
Acorus Variegata
Sweet Flag
Actaea rubra 'Select'
Actea pachypoda
Dolls eyes, White Baneberry
Adiantum pedatum
Fern: Maidenhair
Aethionema kotschyi
Stonecress
Agastache 'Apricot Sprite'
Agastache 'Ava'
Hyssop
Agastache 'Black Adder'
Hyssop
Agastache 'Blue Licorice'
Hyssop
Agastache f. 'Golden Jubilee'
Hyssop
Ajuga 'Mahogony'
Bugleweed
Ajuga reptans Black Scallop
Bugleweed
Ajuga reptans 'Bronze Beauty'
Bugleweed
Alcea ficifolia 'Mixed-Hybrids'
Alchemilla mollis 'Auslese'
Ladys Mantle
Alchemilla mollis 'Thriller'
Lady's Mantle
Allium cyaneum
Ornamental Onion
Allium 'Millenium'
Allium nutans
Onion: OrnamentalSiberian
Allium senescens 'Mongolian Gem'
Onion: Ornamental
Allium taquettii
Onion: Ornamental
Alstroemeria 'Redcoat'
Peruvian Lily
Amsonia 'Blue Ice'
Amsonia 'Halfway to Arkansas'
Amsonia hubrechtii
Blue Star
Amsonia illustris
Blue Milkweed
Andropogon gerardii
Grass:Bluestem
Anemone japonica 'Honorine Jobert'
Windflower
Anemone multifida 'Anabella Deep Red'
Windflower
Anemone multifida 'Rubra'
Anemone
Anemone 'Prince Henry'
Anemone tomentosa 'Robustissima'
Windflower
Anemonella t. 'Green Hurricane'
Rue Anemone
Anemonella thalictroides
Rue Anemone
Anemonella thalictroides Rosea
Rue Anemone
Anemonopsis macrophylla
False Anemone
Aquilegia v. 'Nora Barlow'
Columbine
Aquilegia buergeriana
Aquilegia canadensis
Columbine:Wild Red
Aquilegia canadensis 'Little Lanterns'
Columbine
Aquilegia f. alba
Columbine
Aquilegia f. Pumila
Columbine
Aquilegia flabellata 'Cameo White'
Columbine
Aquilegia 'Mellow Yellow'
Columbine
Aquilegia vulgaris 'Lime Frost'
Columbine
Arisaema consanguineum
Jack in the Pulpit
Arisaema draconitum
Green Dragon
Arisaema taiwanese
Jack in the Pulpit
Arisaema triphyllum
Jack in the Pulpit
Aristolochia durior
Dutchmans Pipe
Armeria 'Blue Mound'
Seathrift
Armeria m Rubrifolia
Thrift
Artemesia absinthium 'Powis Castle'
Wormwood
Arum italicum 'White Winter'
Cuckoo Pint
Asarum canadense
Wild Ginger
Asarum europeum
Ginger
Asclepias incarnata ssp. Pulchra
Swamp Milkweed
Asclepias purpurascens
Purple Milkweed
Asclepias verticillata
Milkweed
Asclepias viridis
Aster cordifolius
Aster
Aster laterifolius 'Lady in Black'
Aster x frikartii 'Monch'
Astilbe glaberrima var. saxatilis
False Goatsbeard
Astilbe 'Montgomery'
Astilbe 'Snowdrift'
Astilboides tabularis
False Plume Flower
Astrantia major 'Florence'
Masterwort
Astrantia major 'Lars'
Masterwort
Astrantia 'Ruby Stars'
Masterwort
Athyrium felix femina 'Dres Dagger'
Fern: Lady Fern
Athyrium felix femina 'Victoriae'
Fern: Lady Fern
Athyrium felix-femina 'Encourage'
Fern: Crested Lady Fern
Athyrium nipponicum 'Pictum'
Fern: Japanese Painted
Aubrieta aurea
Golden Aubrieta
Baptisia 'Purple Smoke'
False Indigo
Baptisia 'Carolina Moonlight'
False Indigo
Begonia grandis
Hardy Begonia
Begonia grandis 'Alba'
Hardy Begonia
Begonia grandis 'Heron's Pirouette'
Hardy Begonia
Belamcanda chinensis
Blackberry Lily
Bellis p. pomponette
Bellis perennis
Lawn Daisy
Bergenia 'Rosie Klose'
Pig Squeak
Berkheya cirsiifolia
Bletilla striata
Hardy Orchid
Boehmeria nivea
Dead Nettle
Boltonia 'Jim Crockett'
Briza 'Media'
Grass:Quaking Grass
Brunnera 'Jack Frost'
Siberian Bugloss
Brunnera macrophylla
Brunnera macrophylla 'Variegata'
Bugloss
Brunnera 'Mr. Morse'
Bugloss
Brunnera 'Spring Yellow'
Bugloss
Caltha palustris
Marsh Marigold
Caltha palustris var. alba
Marsh marigold
Campanula c. 'Elizabeth Oliver'
Bellflower
Campanula 'Dicksons Gold'
Bell Flower
Campanula fenestrellata
Bellflower
Campanula k. 'Kent Belle'
Bell Flower
Campanula p. 'Birch Hybrid'
Bellflower
Campanula p. 'Chettle Charm'
Bell Flower
Campanula poscharskyana 'Blue Waterfall'
Bell Flower
Campanula 'Samantha'
Campsis radicans 'Flamenco'
Trumpet Vine
Carex berggrenii
Caramel Carpet sedge
Carex dolichostachya 'Kaga-Nishiki'
Grass:Sedge
Carex elata 'Aurea Bowles Golden'
Grass: Sedge
Carex 'Island Brocade'
Grass:Sedge
Carex laxiculmis 'Hobb'
Grass:Carex Bunny Blue
Carex morrowi 'Silver Sceptre'
Grass:Sedge
Carex morrowi 'Ice Dance'
Grass:Sedge
Carex muskingumensis 'Little Midge'
Grass:Sedge
Carex pennsylvanica
Grass:Sedge
Carex siderostica 'Banana Boat'
Grass:Sedge
Carex 'Velebit Humilus'
Grass:Sedge
Caryopteris divaricata 'Snow Fairy'
Bluebeard, woodland
Centaurea 'Gold Bullion'
Centaurea montana 'Black Widow'
Centranthus ruber 'Alba'
Jupiter's Beard
Centranthus rubra
Red Valerian
Cerastium tomentosum
Snow in Summer
Ceratostigma plumbaginoides
Leadwort
Chasmanthium latifolium
Northern Sea Oats
Chelone glabra
Turtlehead
Chelone 'Hot Lips'
Turtlehead
Chelonopsis yagiharana
Cimicifuga 'Brunette'
Bugbane
Cimicifuga racemosa 'Brunette'
Bugbane
Clematis texensis 'Dutchess of Albany'
Clematis akebeoides
Clematis 'Allanah'
Clematis 'Arctic Queen'
Clematis 'Belle of Woking'
Clematis 'Cirrhosa Freckles'
Clematis 'Claire de Lune'
Clematis crispa
Clematis 'Dawn'
Clematis 'Elsa Spath"
Clematis 'Etoile Rose'
Clematis fargesiodes
Clematis 'Gillian Blades'
Clematis 'H.F. Young'
Clematis 'Haku Ookan'
Clematis heracleifolia 'Mrs. Robert Brydon'
Clematis 'Ice Blue'
Clematis integrifolia
Clematis jackmanii
Clematis 'John Warren'
Clematis 'Ken Donson'
Clematis 'Killian Donahue'
Clematis ladakhiana
Clematis m. 'Markhams Pink'
Clematis macropetala 'Blue Bird'
Clematis 'Mrs. Cholmondoley'
Clematis 'Niobe'
Clematis paniculata
Clematis 'Perle Dazur'
Clematis pitcheri
Purple Leatherflower
Clematis proteus
Clematis 'Ramona'
Clematis 'Roguchi'
Clematis 'Rouge Cardinal'
Clematis 'Silver Moon'
Clematis tangutica
Clematis texensis 'Gravetye Beauty'
Clematis 'The President'
Clematis 'Tritemata Rubromargin'
Clematis v. 'Purpurea Plena Elegans'
Clematis 'Victor Hugo'
Clematis virginiana
Clematis viticella 'Betty Corning'
Clematis viticella 'Little Nell'
Convallaria majalis 'Yellow Striped'
Lily of the Valley
Convallaria majalis 'Bordeaux'
Lily of the Valley
Convallaria majalis 'Cream da Mint'
Lily of the Valley
Coreopsis alpina 'Alba'
Dwarf Tickseed
Coreopsis 'Redshift'
Tickseed
Coreopsis verticillata 'Moonbeam'
Tickseed
Corydalis cava
Corydalis elata
Fumewort
Corydalis lutea
Yellow Fumewort
Cotyledon orbiculata cigar-shaped leaf
Cotyledon orbiculata round leaf
Crocosmia 'Distant Planet'
Crocosmia 'Ember Glow'
Montbretia
Crocosmia 'Emily McKenzie'
Montbretia
Cunila origanoides (dittany)
Stonemint
Cyclamen cilicium
Cyclamen coum
Cyclamen hederifolium
Cymbalaria muralis 'Globosum Roseum'
Kenilworth Ivy
Cymbalaria muralis 'Alba Compacta'
Toadflax
Cyrtanthus macowanii
Darmera peltata
Indian Rhubarb
Deinanthe caerula
Delphinium 'Delfix Blue'
Delphinium 'Delfix Blue-Violet'
Delphinium 'Delft Blue'
Larkspur
Delphinium elatum 'Aurora Blue'
Larkspur
Dendranthema 'Hillside Orange'
Deschampsia flexuosa
Grass: Wavy Hair Grass
Dianthus arenarius Snow Flurry'
Pinks
Dianthus 'Blue Hills'
Pinks
Dianthus japonicus
Pinks
Dianthus 'Mrs. Holt'
Pinks
Dianthus 'Pikes Pink'
Dianthus 'Tiny Rubies'
Pinks
Dianthus x Hybrida 'Baths Pink'
Pinks
Dicentra cucullaria
Dutchman's breeches
Dicentra eximia 'Aurora'
Bleeding Heart
Dicentra f. Luxuriant'
Bleeding Heart
Dicentra macrocapnos
Dicentra scandens 'Athens Yellow'
Bleeding Heart
Dicentra spectabilis 'Alba'
Bleeding Heart
Dicentra spectablis
Bleeding Heart
Dictamnus albus v. caucasicus
Gas plant
Digitalis p. 'Lily's Lilac'
Foxglove
Digitalis p. Sutton's Apricot
Foxglove
Digitalis 'Spanish Peaks'
Foxglove
Digitalis trojana
Foxglve
Dioscorea villosa
Wild Yam
Diphyllum cymosa
Disporum c. 'Aureovariegatum'
Fairybells
Disporum cantoniense 'Black Heron'
Chinese Fairybells
Dodecatheon
Doronicum orientale ‘Little Leo’
Leopardbane
Echinacea angustifolia
Cone Flower
Echinacea 'Big Sky Sundown'
Coneflower
Echinacea 'Green Envy'
Coneflower
Echinacea 'Harvest Moon'
Cone Flower
Echinacea 'Kims Knee High'
Coneflower
Echinacea paradoxa
Coneflower
Echinacea purpurea 'Magnus'
Coneflower
Echinacea purpurea 'Ruby Giant'
Coneflower
Echinacea purpurea 'Ruby Star'
Coneflower
Echinacea purpurea 'White Swan'
Coneflower
Echinacea simulata
Coneflower
Echinacea 'Sunrise'
Coneflower
Echinacea tennesseensis 'Rocky Top'
Coneflower
Echinacea 'Vintage Wine'
Echinops ritro ssp. ruthenicus
Globethistle
Epimedium versicolor 'Sulphureum'
Barrenwort
Equisetum hyemale
Horsetail
Eryngium amethystiium
Sea Holly
Eryngium 'Blue Diamond'
Sea Holly
Eryngium p. 'Sapphire blue'
Sea Holly
Eryngium planum 'Blue Hobbit'
Sea Holly
Erythrina zeyheri
Erythronium americanum
Trout Lily/Dog Tooth Violet
Eupatorium 'Little Joe'
Joe Pye Weed
Eupatorium maculatum 'Gateway'
Joe Pye Weed
Eupatorium purpureum 'Little Red'
Joe Pye Weed
Eupatorium rugosum 'Chocolate'
Joe Pye Weed
Euphorbia c. Wulfenii
Euphorbia 'Efanthia'
Euphorbia 'Mini 'Martini'
Spurge
Euphorbia myrsinites
Spurge:Donkey Tail
Euphorbia 'Tasmanian Tiger'
Spurge