Aconitum, 251
Acorus gramineus ‘Minimus Aureus’, 187
Actaea simplex ‘Black Negligee’, 190
Actaea simplex ‘Hillside Black Beauty’, 190
Adams, Sinclair, 35
Adiantum aleuticum, 18
Aeoniopsis cabulica, 237
Aesculus parviflora ‘Rogers’, 57
Agapanthus, 171
Agapanthus inapertus ssp. pendulus ‘Graskop’, 171
Agapanthus ‘Queen Mum’, 170, 171
Agapanthus ‘Storm Cloud’, 171
Agapanthus ‘Summer Skies’, 171
Agave desmettiana ‘Joe Hoak’, 16, 17
ajuga, 89
Akin, Sherwood, 47
×Alcalthaea suffrutescens ‘Parkallee’, 71
×Alcalthaea suffrutescens ‘Parkfrieden’, 71
×Alcalthaea suffrutescens ‘Parkrondell’, 71
×Alcalthaea suffrutescens ‘Parktraum’, 71
Alcea, 70
Alcea rosea, 71
Alcea rugosa, 70
Allium carinatum ssp. pulchellum, 219
Allium flavum, 219
Allium karataviense, 219
Allium karataviense ‘Ivory Queen’, 219
Allium ‘Millennium’, 220
Allium schubertii, 219
Allium senescens, 220
Allium senescens ‘Blue Twister’, 220
Allium senescens var. glauca, 220
Allium ‘Summer Beauty’, 219
Allium thunbergii, 220
Alocasia macrorrhiza ‘Lutea’, 184
Alocasia odora ‘Okinawa Silver’, 184
Alocasia sarawakensis ‘Yucatan Princess’, 184–186
Alocasia ‘Sarian’, 184
Alstroemeria, 133
Alstroemeria ‘Freedom’, 133
Alstroemeria Inca Collection, 133
Alstroemeria ‘Koice’ (Inca Ice), 135
Alstroemeria psittacina ‘Variegata’, 135
Alstroemeria ‘Sweet Laura’, 133
Althaea officinalis, 70
Ambrosia, 152
American beautyberry, 181
American fringetree, 53
American smoketree, 53
Ampelaster, 147
Ampelaster carolinianus, 150
Amsonia, 28
Amsonia ciliata, 28
Amsonia ciliata ‘Georgia Pancake’, 29
Amsonia hubrichtii, 28, 29, 178, 181
Amsonia illustris, 28
Amsonia tabernaemontana, 28
Amsonia tabernaemontana ‘Short Stack’, 28
Anemone, 252
Anemone coronaria, 113
Anemone hupehensis var. japonica ‘Prinz Heinrich’, 144
Anemone ×hybrida, 142
Anemone ×hybrida ‘Königin Charlotte’, 144
Anemone ×hybrida ‘Kriemhilde’, 144
Anemone tomentosa ‘Robustissima’, 144
Angelica, 72
Angelica gigas, 72
Angelica stricta ‘Purpurea’, 72
Anisacanthus quadrifidus, 16
Anthericum ramosum, 200
Anthriscus sylvestris ‘Raven’s Wing’, 199
Aplectrum hyemale, 249
Appalachian sedge, 209
Aquilegia canadensis ‘Corbett’, 85–86, 86
Aralia cordata ‘Sun King’, 194
Aralia spinosa, 221
artemisia, 19
Artemisia ludoviciana, 19, 183
Aruncus ‘Guinea Fowl’, 87
Asarum, 89
Asclepias purpurascens, 27
Asclepias variegata, 27
Aster azureus, 149
Aster cordifolius ‘Avondale’, 150
Aster oblongifolius ‘Dream of Beauty’, 149
Aster oblongifolius ‘October Skies’, 148
Aster oblongifolius ‘Raydon’s Favorite’, 148
Aster sedifolius ‘Nanus’, 147
Astragalus laxmannii, 19
Avent, Tony, 28, 31, 65, 96, 186, 201, 203, 215
azure aster, 149
azure sage, 169
Baldwin’s ironweed, 65
Balsamorhiza sagittata, 18
balsamroot, 19
Baltensperger, Urs, 168
Baptisia alba, 31
Baptisia bracteata, 31
Baptisia ‘Cherries Jubilee’, 31
Baptisia Decadence series, 31
Baptisia ‘Dutch Chocolate’, 31
Baptisia ‘Lemon Meringue’, 31
Baptisia leucophaea ‘Butterball’, 31
Baptisia ‘Solar Flare’ (Solar Flare Prairieblues), 31
Baptisia ×variicolor ‘Twilite’ (Twilite Prairieblues), 31
beautyberry, 139, 181, 221–222
Berberis wilsoniae, 221
Bertrand, Caroline, 142
Bertrand, Steve, 142
Betula albosinensis var. septentrionalis, 48
bird’s foot violet, 252
bishop’s cap, 248
blackberry lilies, 232
blackgum, 45
Black, Paul, 114
blazingstars, 177
bleeding hearts, 110
bloody butcher, 105
bluebill, 78
blue fescue, 209
blue grama, 204
blue wood aster, 149
Boggan, John, 203
Boltonia, 150
Boltonia asteroides var. latisquama, 150
Boltonia asteroides var. latisquama ‘Jim Crockett’, 150
Boston ivy, 15
bottle gentians, 166
Bouteloua gracilis, 204
Bouteloua gracilis ‘Blonde Ambition’, 204, 205
Bowles, E. A., 209
Bowles’ golden sedge, 209
Brigden, Mark, 133
bronze sedges, 188
Brown, Robyn, 239
Buddleja alternifolia, 61
Buddleja fallowiana, 60
Buddleja lindleyana, 61
Buddleja ‘Lochinch’, 60
Buddleja marrubiifolia, 58, 60
Buddleja nivea var. yunnanensis, 58, 60
Buddleja ×weyeriana ‘Honeycomb’, 58, 61
Burbank, Luther, 174
burningbush, 225
Burrell, Cole, 99
Bush, Allen, 45
bush clematis, 142
bush clover, 144
buttercups, 18
butterfly milkweed, 27
butterfly weeds, 77
Calamagrostis ×acutiflora ‘Karl Foerster’, 205
Calamagrostis brachytricha, 197, 198
California poppies, 153, 255–257
Callahan, Sean, 193
Callicarpa americana, 181, 222
Callicarpa bodinieri var. giraldii ‘Profusion’, 222
Callicarpa dichotoma, 222
Callicarpa japonica ‘Alba’, 222
Callicarpa japonica ‘Leucocarpa’, 222
Calycanthus chinensis, 58
Calycanthus ‘Hartlage Wine’, 58
Calycanthus occidentalis, 58
candy lilies, 232
Canna ‘Blueberry Sparkler’, 173
Canna ‘Lemon Punch’, 173
Canna ‘Maui Punch’, 173
Canna ‘Phasion’ (Tropicanna), 172, 173
Cardamine, 105
Carex aggregata, 209
Carex appalachica, 209
Carex elata ‘Aurea’, 209
Carex flagellifera, 188
Carex laxiculmis, 210
Carex laxiculmis ‘Hobb’ (Bunny Blue), 209–210
Carex oshimensis ‘Everillo’, 209
Carex pensylvanica, 209
Carex phyllocephala ‘Sparkler’, 210
Carex phyllocephala ‘Spark Plug’, 210
Carex platyphylla, 210
Carex siderosticta ‘Banana Boat’, 209
Carex testacea, 188
Carolina allspice, 59
Carolina aster, 150
catchfly, 174
Cephalaria gigantea, 197–199, 198
Cercis, 44
Cercis canadensis ‘Alley Cat’, 45
Cercis canadensis ‘Covey’, 45
Cercis canadensis ‘Floating Clouds’, 45
Cercis canadensis ‘Forest Pansy’, 33, 45
Cercis canadensis ‘JN2’, 44, 45
Cercis canadensis ‘Ruby Falls’, 45
Cercis racemosa, 44
Cercis ‘Whitewater’, 45
Chinese red birch, 48
Chinese witchhazel, 97
Chionanthus, 52
Chionanthus virginicus, 53
Chlorophytum comosum, 200
Cho, John, 186
Christmas rose, 101
Chrysanthemum ×rubellum ‘Sheffield Pink’, 159
Chrysanthemum ×rubellum ‘Will’s Wonderful’, 159
chrysanthemums, 159
Chrysanthemum zawadskii, 159
Chrysanthemum zawadskii ‘Ryan’s Rainbow’, 159
Claytonia, 105
claytonias, 57
clematis, 142
Clematis ‘Betty Corning’, 78, 80
Clematis chiisanensis ‘Lemon Bells’, 80, 81
Clematis crispa, 78
Clematis heracleifolia, 142, 143
Clematis heracleifolia ‘Cassandra’, 142
Clematis heracleifolia ‘China Purple’, 142
Clematis heracleifolia ‘Davidiana’, 142
Clematis heracleifolia ‘Wyevale’, 142
Clematis ×jouiniana, 142
Clematis ×jouiniana ‘Mrs. Robert Brydon’, 142
Clematis pitcheri, 78
Clematis recta, 81
Clematis recta ‘Midnight Masquerade’, 81
Clematis recta ‘Purpurea’, 81
Clematis tangutica, 81
Clematis texensis, 78
Clematis versicolor, 78
Clematis viorna, 78
Clematis vitalba, 142
Clematis viticella, 78
Coffman, Eugene, 62
Colchicum autumnale, 139
Colchicum ‘Dick Trotter’, 139
Colchicum speciosum, 139
Colchicum ‘Waterlily’, 139
Colocasia, 186
Colocasia ‘Black Coral’, 186
Colocasia ‘Exxon Valdez’, 186
Colocasia gigantea ‘Thai Giant’, 186
Colocasia ‘Noble Gigante’, 186
common milkweed, 27
common snowdrop, 103
compass plant, 69
Convallaria majalis, 229
Convallaria majalis ‘Vic Pawlowski’s Gold’, 229
coral bells, 35
Coreopsis ‘Cranberry Ice’, 125
corkwood, 49
Corsican hellebore, 101
Corsican violet, 252
Corydalis cheilanthifolia, 107
Corylopsis spicata, 99
Cotinus coggygria, 52
crested iris, 85
Crinum, 193
Crinum bulbispermum, 193
Crinum ×digweedii ‘Bolivia, 193
Crinum ‘Menehune’ (Purple Dream), 193–194
Crinum oliganthum × Crinum procerum ‘Splendens’, 193
Crockett, James Underwood, 150
Crocosmia ‘Distant Planet’, 177
Crocosmia ‘Gold’ (Twilight Fairy), 176
Crocosmia ‘Lucifer’, 177
Crocosmia Twilight series, 177
Crocosmia ‘Walrhead’ (Little Redhead), 177
crocuses, 139
Culp, David, 101
Cuphea, 131
Cuphea ‘David Verity’, 130, 131
Cuphea ignea, 131
Cuphea micropetala, 131
Cuphea ‘Strybing Sunset’, 131
cup plant, 69
cyclamen, 245
Cyclamen coum, 245
Cyclamen coum ‘Something Magic’, 244, 245
Cyclamen hederifolium, 245
Cynanchum ascyrifolium, 230, 231
Cypripedium, 38
Cypripedium ‘Anna’, 38
Cypripedium ‘Gabriella’, 38
Cypripedium ‘Gisela’, 38
Cypripedium kentuckiense, 38
Cypripedium parviflorum, 38
Cypripedium reginae, 38
dahlia, 181
Dalea purpurea ‘Stephanie’, 197
Delphinium carolinianum, 172
Delphinium elatum, 171
Delphinium exaltatum, 171
Delphinium tricorne, 172
Dendranthema, 159
devil’s walking stick, 221
Dicentra eximia, 247
Dicliptera suberecta, 174
Digiplexis ‘Illumination Flame’, 195
Digitalis ferruginea, 195
Digitalis obscura, 195
Digitalis purpurea, 194
Disporum flavens, 85
Dixon, John, 129
Dodecatheon, 245
Dodecatheon ‘Amethyst’, 244
Douglas fir, 16
dwarf goatsbeard, 86
dwarf Rhone aster, 147
dwarf Solomon’s seal, 85
eastern bluestar, 28
eastern wahoo, 225
Echinacea ‘Art’s Pride’ (Orange Meadowbrite), 216
Echinacea ‘Flamethrower’, 217
Echinacea ‘Hot Papaya’, 217
Echinacea ‘Matthew Saul’ (Big Sky Harvest Moon), 216, 217
Echinacea pallida, 217
Echinacea pallida ‘Hula Dancer’, 217
Echinacea paradoxa, 216
Echinacea ‘Raspberry Truffle’, 217
Echinacea ‘Tiki Torch’, 217
Edgeworthia, 96
Edgeworthia ‘Akebono’, 96
Edgeworthia chrysantha, 96, 97
Edgeworthia chrysantha ‘Snow Cream’, 96
Eilers, Henry, 156
elephant ears, 184
Elymus, 149
Emerson, Ralph Waldo, 251
English ivy, 15
Epimedium ‘Amber Queen’, 89
Epimedium ‘Sunshowers’, 87
Epimedium ×versicolor ‘Sulphureum’, 87
Eragrostis trichodes, 19
Eranthis hyemalis, 95
Eritrichium, 241
Eryngium, 213
Eryngium planum ‘Blaukappe’, 215
Eryngium planum ‘Blue Hobbit’, 213, 215
Eryngium yuccifolium, 215
Eryngium yuccifolium ‘Kershaw Blue’, 215
Erythronium, 105
Eschscholzia californica, 153, 255–257
Eucomis, 241
Eucomis ‘Dark Star’, 241
Eucomis ‘Glow Sticks’, 241
Eucomis pole-evansii, 241
Eucomis ‘Sparkling Burgundy’, 241
Eucomis vandermerwei ‘Octopus’, 241
Euonymus alatus, 225
Euonymus atropurpureus, 225
Euonymus bungeanus, 225
Euonymus carnosus, 225
Euonymus fortunei, 83
Euonymus fortunei ‘Wolong Ghost’, 83
Euphorbia corollata ‘Carolina Snow’ (Redneck Baby’s Breath), 201
Euphorbia martinii ‘Ascot Rainbow’, 201
European blue hair-grass, 207
Eurybia, 147
Euthamia, 152
evening primroses, 32
false indigos, 31
Farmer, Jenks, 193
fern-leafed corydalis, 107
fernleaf peony, 118
Ferocactus wislizeni, 14
Festuca glauca, 209
fiddlehead fern, 22
firecracker plant, 131
firethorn, 211
fishbook barrel cactus, 14
flowering tobacco, 257
foamflowers, 35
foamy bells, 35
forbs, 25
Foster, H. Lincoln, 121
fountaingrass, 163
fringecups, 249
fringetrees, 52
Fritillaria elwesii, 247
Fritillaria imperialis, 247
Fritillaria meleagris, 247
Fritillaria pallidiflora, 113, 247
Fritillaria persica, 110
Fritillaria sewerzowii, 245
Fritillaria striata, 245
Frosch, Werner, 38
Gaillardia aestivalis var. winkleri ‘Grape Sensation’, 130, 131
Gaillardia aristata, 129
Gaillardia aristata ‘Amber Wheels’, 129
Gaillardia ‘Fanfare’, 131
Gaillardia ×grandiflora ‘Moxie’, 129, 130, 131
Gainey, Ryan, 159
Galanthus elwesii Hiemalis Group, 105
Galanthus elwesii var. monostictus, 103–105
Galanthus nivalis, 103
Galanthus plicatus, 105
Galanthus plicatus ‘Three Ships’, 105
Galanthus ‘Washfield Warham’, 105
Gentiana acaulis, 168
Gentiana acaulis ‘Maxima’, 168
Gentiana acaulis ‘Renate’, 168
Gentiana andrewsii, 166
Gentiana catesbaei, 166
Gentiana clausa, 166
Gentiana makinoi, 166
Gentiana scabra, 166
Gentiana septemfida, 168
Gentiana ‘True Blue’, 166
glade violet, 252
gladiolus, 133
Gladiolus ‘Atom’, 133
Gladiolus ‘Boone’, 133
Gladiolus ‘Carolina Primrose’, 133
Gladiolus dalenii, 133
Glick, Barry, 101
Goodyera pubescens, 249
gray birch, 43
great blue lobelia, 170
Griffinia liboniana, 239–241, 241
Grummons, Kelly, 212
hairless Japanese woodland sage, 39
Hakonechloa macra ‘All Gold’, 207
Hakonechloa macra ‘Aureola’, 207
Hakonechloa macra ‘Fubuki’, 207
Halesia tetraptera, 51
Hamamelis ×intermedia, 97
Hamamelis ×intermedia ‘Arnold Promise’, 98
Hamamelis ×intermedia ‘Jelena’, 98
Hamamelis ×intermedia ‘Magic Fire’, 98
Hamamelis ×intermedia ‘Treasure Trove’, 98
Hamamelis japonica, 97
Hamamelis mollis, 97
Hamamelis vernalis, 97
Hamamelis vernalis ‘Amethyst’, 97
Hamamelis virginiana, 98
Harris, Chad, 117
Heath, Becky, 110
Heath, Brent, 110
Hedera helix, 15
Heims, Dan, 35
Helenium, 154
Helenium amarum ‘Dakota Gold’, 155–156
Helenium ‘Butterpat’, 154
Helenium ‘Flammenspiel’, 155
Helenium ‘Kanaria’, 155
Helenium ‘Mardi Gras’, 154
Helenium ‘Moerheim Beauty’, 154
Helenium ‘Rubinzwerg’, 155
Helenium ‘Sahin’s Early Flowerer’, 66, 154
Helenium ‘Septembergold’, 155
Helenium ‘Tijuana Brass’, 155
Helenium ‘Waldtraut’, 155
Helenium ‘Wyndley’, 154
Helleborus ‘Anna’s Red’, 101
Helleborus argutifolius, 101
Helleborus ×ericsmithii, 101
Helleborus foetidus, 101
Helleborus foetidus ‘Red Silver’, 101
Helleborus Gold Collection, 101
Helleborus ‘Golden Lotus’, 101
Helleborus ‘Jade Tiger’ (Winter Jewels), 101
Helleborus niger, 101
Helleborus niger ‘Jacob’, 101
Helleborus niger ‘Jacob Classic’, 101
Helleborus niger ‘Jacob Royal’, 101
Helleborus niger ‘Josef Lemper’, 101
Helleborus ‘Onyx Odyssey’, 101
Helleborus purpurascens, 101
Helleborus ×sternii, 101
Hepatica nobilis, 105
Heptacodium miconioides, 49, 51
herbaceous peony, 119
Heuchera ‘Blondie’, 35
Heuchera Little Cutie series, 35
×Heucherella, 35
×Heucherella ‘Redstone Falls’, 35
×Heucherella ‘Solar Eclipse’, 35
×Heucherella ‘Yellowstone Falls’, 35
Hibiscus acetosella ‘Panama Red’, 178
Himalayan blue poppies, 166
Hinkley, Dan, 83
hoary skullcap, 39
Hollingsworth, Don, 119
hoptree, 77
horsemint, 178
Horvath, Brent, 69
hostas, 33, 39, 110, 137, 235, 247, 248, 252
houseleeks, 237
Hyacinthoides hispanica, 18
Hyde, Cyrus, 243
Hydrangea, 39
Iliamna rivularis, 72
imperial fritillary, 247
Indigofera amblyantha, 85
intermediate bearded iris, 114
Ionactis, 147
Ipomoea ‘Grandpa Ott’s, 228
Ipomoea ‘Heavenly Blue’, 228
Ipomoea purpurea ‘Sunrise Serenade’, 228
iris, 85, 110, 114–117, 232–234
Iris bucharica, 114
Iris ‘Butter and Sugar’, 114
Iris ‘Caesar’s Brother’, 114
Iris cristata, 85
Iris dichotoma, 232
Iris domestica, 232
Iris ensata, 117
Iris laevigata ‘Lakeside Ghost’, 116, 117
Iris ×norrisii, 232
Iris ×norrisii ‘Summer Candy’, 232
Iris ochroleuca, 117
Iris orientalis, 117
Iris ‘Pomegranate Punch’, 116, 117
Iris pumila, 110
Iris spuria ssp. halophila, 117
Iris spuria ssp. halophila ‘Prairie Lights’, 117
Iris tectorum, 85
Iris tectorum ‘Alba’, 85
Isoplexis canariensis, 194
Jackson, Cindy, 44
Jackson, Ray, 44
Japanese forest grass, 207
Japanese pagodatree, 47
Japanese primrose, 196
Japanese witchhazel, 97
Japanese woodland sage, 39
Jefferson, Thomas, 22
Kintgen, Mike, 241
Kintzley, William “Ped,” 77
Kirengeshoma, 251
kiss-me-over-the-garden-gate, 163
Klehm, Roy, 118
Kniphofia ‘Ember Glow’, 128
Kniphofia northiae, 127
Koeleria, 205
Koeleria glauca Coolio, 207
Kolkwitzia amabilis ‘Maradco’ (Dream Catcher), 190
Korean burnet, 66
Korean feather reed grass, 197
Korean mums, 159
Kosteletzkya virginica, 229
Kovats, Zoltan, 70
lady’s slippers, 38
lady’s tresses, 251
lamb’s ears, 58
Lamium garganicum, 241
Lamium maculatum, 241
Lathyrus, 102
Lathyrus vernus, 102
Lavatera thuringiaca, 198, 199
Lebanese fritillary, 247
Leitneria floridana, 49
Lespedeza thunbergii, 144
Lespedeza thunbergii ‘Gibraltar’, 145
Lespedeza thunbergii ‘Samindare’, 145
Lespedeza thunbergii ‘Spilt Milk’, 145
Leucanthemum ×superbum ‘Victorian Secret’, 95
L’Héritier, Charles-Louis, 231
Liatris, 177
Liatris acidota, 177
Liatris aspera, 177
Liatris ligulistylis, 176
Liatris punctata, 177
Liatris pycnostachya, 177
Liatris spicata, 177
Lighty, Dick, 150
lilies, 133–138, 141, 143, 232, 241
Lilium, 135
Lilium ‘Debbie’, 135
Lilium ‘Lankon’, 136
Lilium lankongense, 136
Lilium ‘Larissa’, 137
Lilium philadelphicum, 136
Lilium ‘Robina’, 135
Lilium ‘Stargazer’, 135
lily of the valley, 229
Lindgren, Dale, 125
Lindstrom, Jon, 201
little bluestem, 20, 21, 108, 204
Lonicera, 75
Lonicera reticulata ‘Kintzley’s Ghost’, 77
Lonicera sempervirens ‘John Clayton’, 77
Louisiana sage, 183
Lowman, Larry, 156
Lunaria annua, 254
Lunaria annua ‘Pennies in Bronze’, 255
Lunaria annua ‘Rosemary Verey’, 255
Lunaria annua ‘Variegata Alba’, 255
Lycoris, 141
Lycoris ×albiflora, 141
Lycoris radiata, 141
Lycoris radiata ‘Fireworks’, 141
Lycoris ×squamigera, 141
Magnolia grandiflora, 21
Mahonia, 55
Mahonia aquifolium, 55
Mahonia eurybracteata, 55
Mahonia eurybracteata ‘Soft Caress’, 55
Mahonia gracilipes, 55
maidenhair fern, 91
Maness, Thurman, 174
Manfreda longifolia, 238
Manfreda undulata ‘Chocolate Chips’, 238
Manning, Warren H., 43
marshmallow, 70
Matelea gonocarpos, 78
Matteuccia struthiopteris, 22, 23
mayapples, 37
McDonough, Mark, 220
Meconopsis, 166
Meconopsis betonicifolia, 166
Meconopsis grandis, 166
Meconopsis ‘Lingholm’, 166
merryworts, 57
Mertensia, 247
Michaelmas daisy, 147
Michaux, André, 231
Michauxia, 231
Michauxia campanuloides, 230, 231
Michaux’s bellflower, 230
milkweeds, 27
miniature rock cabbage, 237
miscanthus, 66
Mitella diphylla, 248
Molinia, 149
Monarda bradburiana, 178
monkshoods, 251
moor grass, 149
Moraea, 233
Moraea huttonii, 233
Moraea neopavonia, 234
Moraea ramosissima, 233
Moraea tulbaghensis, 234
Moraea villosa, 234
morning glories, 228
Morrow, Matthew, 235
Muhlenbergia capillaris, 207
naked ladies, 141
Narcissus ‘Blushing Lady’, 113
Narcissus ‘Hillstar’, 110
Narcissus ‘Mary Gay Lirette’, 113
Narcissus ‘Modern Art’, 110
Narcissus ‘Rapture’, 110
Narcissus ‘Rijvnveld’s Early Sensation’, 110
Narcissus ‘Rip Van Winkle’, 110
Narcissus ‘W. P. Milner’, 113
Nepeta ‘Blue Lagoon’, 165
Nepeta cataria, 165
Nepeta cataria ‘Citriodora’, 165
Nepeta racemosa ‘Walker’s Low’, 165
Nepeta sibirica, 165
Nepeta sibirica ‘Souvenir d’André Chaudron’, 165, 166
Nepeta subsessilis, 166
Nepeta yunnanensis, 166
New England aster, 147
New York ironweed, 65
Nicotiana, 257
Nicotiana alata, 257
Nicotiana glutinosa, 257
Nicotiana langsdorfii, 257
Nicotiana mutabilis, 257
Nicotiana rustica, 257
Nicotiana sylvestris, 257
ninebarks, 69
Norris, Sam, 232
Nyssa, 45
Nyssa Afterburner (‘David Odom’), 45
Nyssa sylvatica ‘Zydeco Twist’, 46, 47
O’Byrne, Ernie, 99
O’Byrne, Marietta, 99
Oenothera, 32
Oenothera macrocarpa ssp. fremontii ‘Comanche Campfire’, 33
Oenothera macrocarpa ssp. fremontii ‘Shimmer’, 33
Oenothera macrocarpa ssp. fremontii ‘Silver Wings’, 33
Oenothera tetragona ‘Fireworks’, 32
Oenothera versicolor ‘Sunset Boulevard’, 32
Oligoneuron, 152
Opuntia, 211
Opuntia fragilis, 213
Opuntia fragilis var. denudata, 213
Opuntia humifusa, 211
Opuntia polyacantha ‘Crystal Tide’, 212
Opuntia polyacantha ‘Nebraska Orange’, 212
Opuntia polyacantha ‘Taylor’s Red’, 212
Opuntia ‘Smithwick’, 213
Oregon grape holly, 55
oriental poppy, 215
Orostachys boehmeri, 235
Osmunda cinnamomea, 22
ostrich fern, 23
Oudolf, Piet, 217
Owen, Jeff, 133
Paeonia ‘Cheese Country’, 118
Paeonia ‘Coral Charm’, 118
Paeonia ‘Fairy Princess’, 118
Paeonia ‘Garden Treasure’, 119
Paeonia ‘Merry Mayshine’, 118
Paeonia tenuifolia, 118
Pagels, Ernst, 87
pale leatherflower, 78
pale purple coneflower, 217
Papaver intermedium, 215
Papaver orientale, 215
Pardancanda norrisii ‘Dazzler’, 232
Pardancanda norrisii ‘Sangria’, 232
Parthenocissus quinquefolia ‘Monham’ (Star Showers), 75
Parthenocissus tricuspidata, 15
Pat FitzGerald, 209
peacock moraeas, 234
Pelargonium crispum ‘Cy’s Sunburst’, 243
Pelargonium sidoides, 243
Pennisetum, 189
Pennisetum alopecuroides, 163
Pennsylvania sedge, 209
Penstemon, 125
Penstemon albidus, 125
Penstemon barbatus, 125
Penstemon digitalis, 126
Penstemon digitalis ‘Dark Towers’, 125
Penstemon digitalis ‘Husker Red’, 125
Penstemon digitalis ‘Precious Gem’, 125
Penstemon eatonii, 125
Penstemon glaber, 125
Penstemon grandiflorus, 125
Penstemon hirsutus, 125
Penstemon hirsutus ‘Pygmaeus’, 125
Penstemon richardsonii, 126
Penstemon smallii, 125
Penstemon strictus, 125
Perovskia atriplicifolia, 169
Persicaria amplexicaulis ‘Firetail’, 189
Persicaria bistorta ‘Superba’, 165
Phlox bifida, 122
Phlox carolina ‘Bill Baker’, 122
Phlox ‘Forever Pink’, 122
Phlox glaberrima, 122
Phlox paniculata Jeana’, 121
Phlox paniculata ‘Peppermint Twist’, 121
Phlox pilosa, 123
Phlox pilosa ssp. ozarkana, 123
Phlox pilosa ssp. sangamonensis, 123
Phlox ×procumbens ‘Pink Profusion’, 122
Phlox ‘Puple Pinwheels’, 122
Phlox subulata, 121
Phlox subulata ‘Coral Eyes’, 121–122
Physocarpus opulifolius ‘Diablo’, 69
Phytolacca americana, 190
Phytolacca americana ‘Silberstein’, 190
pineapple lilies, 241
pink muhly grass, 207
Plantago major ‘Frills’, 234
Plantago major ‘Purple Perversion’, 233
Plantago major ‘Rubrifolia’, 234
Plantago rosularis ‘Bowles Variety’, 235
Podophyllum, 37
Podophyllum hexandrum, 37
Podophyllum peltatum, 37
Podophyllum pleiandrum, 37
pokeweed, 190
Polianthes, 238
Polygonatum humile, 85
Polygonatum orientale, 163
Polystichum, 18
prairie crocus, 252
prairie phlox, 123
prickly pear cactus, 211
Primula japonica, 196
Prunus ×cistena, 80
Pseudotsuga menziesii, 16
Ptelea trifoliata, 77
Pulsatilla, 252
Pulsatilla aurea, 254
Pulsatilla rubra ssp. hispanica, 254
Pulsatilla vulgaris, 252
purple milkweed, 27
purple prairie clover, 196–197
purple winter rose, 101
puttyroot orchid, 249
ragweed, 152
rattlesnake master, 215
rattlesnake plantain, 249
Raulston, J. C., 21
redbuds, 44
redring milkweed, 27
Rhodophiala bifida ‘Hill Country Red’, 141
Rising Sun redbud, 44
riverside wild hollyhock, 72
Roach, Margaret, 159
rock garden peony, 118
Rocky Mountain blazingstar, 176
roof iris, 85
Rudbeckia subtomentosa ‘Henry Eilers’, 156
Rudbeckia subtomentosa ‘Little Henry’, 156
Russian sage, 169
Sabal, 183
Salman, David, 205
Salvia azurea, 169
Salvia azurea ‘Nekan’, 169
Salvia glabrescens, 39
Salvia glabrescens ‘Momobana’, 39
Salvia glabrescens ‘Shi Ho’, 39
Salvia koyamae, 39
Salvia leucantha ‘Santa Barbara’, 16
Salvia mexicana ‘Limelight’, 168
sand cherry, 80
sand lovegrass, 19
sand phlox, 122
Sanguinaria canadensis, 105
Sanguinaria canadensis ‘Multiplex’, 105, 106
Sanguisorba hakusanensis, 66
Sanguisorba officinalis ‘Tanna’, 196
Sanguisorba tenuifolia ‘Purpurea’, 196
Santa Barbara sage, 16
Schizachyrium scoparium, 20, 21, 108, 204
Schizachyrium scoparium ‘Standing Ovation’, 204
Schoenfeld, Carl, 238
Scutellaria incana, 39
seashore mallow, 229
seaside goldenrod, 153
Sedum telephium ssp. ruprechtii ‘Hab Gray’, 213
Sedum tetractinum, 188
Seemannia nematanthodes ‘Evita’, 203
Shasta daisy, 95
shooting stars, 245
showy goldenrod, 153
shredded umbrella plant, 37
Siberian catmint, 165
Siberian iris, 114
Siebold viburnum, 62
Silene ‘Longwood’, 174
Silene ‘Rockin’ Robin’, 174
Silphium, 66
Silphium albiflorum, 66
Silphium integrifolium, 69
Silphium laciniatum, 69
Silphium perfoliatum, 69
Silphium perfoliatum ‘The Holy Grail’, 69
Silphium terebinthinaceum, 66–69
Silphium trifoliatum, 69
Sinningia ‘Arkansas Bells’, 201
Sinningia ‘Bananas Foster’, 203
Sinningia sellovii, 201
Sinocalycanthus chinensis, 58
smoketree, 52
sneezeweed, 154
snowbell trees, 51
snowdrop, 103
snow trillium, 105
Solanum pyracanthum, 211
Solidago flexicaulis ‘Variegata’, 154
Solidago missouriensis, 152, 153
Solidago rugosa ‘Fireworks’, 153
Solidago sempervirens, 153
Solidago speciosa, 153
Solidago stricta, 153
Sophora japonica, 47
Sorbaria sorbifolia ‘Sem’, 54, 55
Sorghastrum nutans ‘Bantam’, 21
Sorghastrum nutans ‘Indian Steel’, 21
Sorghastrum nutans ‘Redspike’, 21
Sorghastrum nutans ‘Sioux Blue’, 21
southern magnolias, 21
Spanish bluebells, 18
Spanish moss, 13
spider plants, 200
spike blazingstar, 177
spindletree, 225
Spiranthes, 251
Spiranthes cernua ‘Chadd’s Ford’, 251
Sporobolus heterolepis, 197, 198
Sporobolus heterolepis ‘Tara’, 197
spotted deadnettle, 241
spring onion, 219
spring pea, 102
Stachys byzantina, 58
Stephanotis, 231
stinking hellebore, 101
Stover, Dawn, 131
Styrax americanus, 51
Styrax americanus ‘Fragrant Fountain’, 51
Styrax americanus ‘Kankakee’, 51
Styrax japonicus Marleys Pink Parasol (‘JLWeeping’), 51
Styrax japonicus ‘Pink Chimes’, 51
Styrax Snowcone, 51
suncups, 32
sundrops, 32
surprise lilies, 141
sweet coneflower, 156
sweet flag, 188
Symphyotrichum, 147
Symphyotrichum ×amethystinum, 148
Symphyotrichum cordifolium, 149
Symphyotrichum ericoides, 147, 148, 149
Symphyotrichum ericoides ‘Snowdrift’, 148
Symphyotrichum laeve ‘Bluebird’, 150
Symphyotrichum novae-angliae, 147, 148
Symphyotrichum novi-belgii, 147
Symphyotrichum oolentangiense, 149
Symphyotrichum pilosum, 147, 148
Symphyotrichum sericeum, 150
Symphytum ×uplandicum ‘Axminster Gold’, 190–193
Syneilesis aconitifolia, 37
taprooted balsamroot, 18
Tellima, 248
Tellima grandiflora, 249
Texas firecracker bush, 16
Thalictrum ‘Black Stockings’, 73
Thalictrum dasycarpum, 74
Thalictrum delavayi, 73
Thalictrum delavayi ‘Hewitt’s Double’, 73
Thalictrum flavum, 73
Thalictrum ichangense ‘Evening Star’, 91
Thalictrum minus ‘Adiantifolium’, 91
Thalictrum rochebrunianum ‘Lavender Mist’, 73, 74
threadleaf bluestar, 29
Thuja plicata, 16
Tiarella, 35
Tiarella cordifolia, 35
Tiarella cordifolia ‘Susquehanna’, 35
Tillandsia usneoides, 13
toad lilies, 154
tobacco, 257
tree peony, 119
Tricyrtis, 154
trillium, 105
Trillium grandiflorum, 105
Trillium nivale, 105
Trillium recurvatum, 105
Triosteum perfoliatum, 222, 225
Tristram, David, 177
Trollius laxus, 18
trumpet gentian, 168
Tulipa batalinii, 109
Tulipa batalinii ‘Apricot Jewel’, 109
Tulipa clusiana, 109
Tulipa clusiana ‘Cynthia’, 108, 109
Tulipa clusiana ‘Lady Jane’, 109
Tulipa linifolia, 109
Turkestan onion, 219
Tychonievich, Joseph, 234
Tyler, Dick, 101
Uruguayan firecracker plant, 174
Uvularia, 57
vernal witchhazel, 97
Vernonia baldwinii, 65
Vernonia baldwinii ‘Border Crossing’, 65
Vernonia gigantea, 65
Vernonia gigantea ‘Jonesboro Giant’, 65
Vernonia lettermannii, 66
Vernonia noveboracensis, 65
Veronicastrum virginicum, 66, 67
Veronicastrum virginicum ‘Adoration’, 66
Veronicastrum virginicum ‘Apollo’, 66
Veronicastrum virginicum ‘Erica’, 66
Veronicastrum virginicum ‘Fascination’, 66
vesper irises, 232
viburnum, 62
Viburnum farreri, 62
Viburnum japonicum, 62
Viburnum japonicum ‘Variegatum’, 62
Viburnum plicatum ‘Popcorn’, 62
Viburnum sieboldii ‘Wavecrest’, 62
Viola corsica, 252
Viola egglestonii, 252
Viola pedata, 252
Viola sororia, 251
Viola walteri ‘Silver Gem’, 252
Viornas, 78
Virginia bluebells, 247
Virginia creeper, 75
volleyball onion, 219
Werner, Denny, 45
western red cedar, 16
white sage, 19
wild catmint, 165
wild ginger, 89
wild indigo, 31
wild rye, 149
Wilson, E. H., 47
winter aconite, 95
Wister, Gertrude, 103
woodland poppy, 89
yellow coneflower, 216
yellow fairy bells, 85
yellow honeysuckle, 75
yellow wax bells, 251
Yucca aloifolia, 186
Yucca aloifolia ‘Blue Boy’, 186, 187
Yucca aloifolia ‘Purpurea’, 187
Yucca filamentosa, 187
Yucca filamentosa ‘Hairy’, 187
Yucca filamentosa ‘Variegata’, 187
Yucca harrimaniae, 187
Zantedeschia, 181
Zauschneria arizonica, 174, 175