Inula ensifolia, 247 , 344
‘Compacta’, 247
Inula helenium, 248
Inula magnifica
‘Sonnenstrahl’, 248
invasive plants, 26, 61, 79
Iridaceae, 195, 249, 251, 316
Iris domestica, 249 , 348, 349,
351, 361, 362, 363, 373,
374
‘Freckle Face’, 176
‘Hello Yellow’, 176
as a “petal dropper”, 104
Iris ensata, 32
irises / Iris, 49, 350, 359, 370
Iris ×germanica, 249 , 344,
346, 349, 351, 358, 366,
367 , 369, 376, 377
‘Baby Blessed’, 251
‘Best Bet’, 251
borers as pests, 69
‘Feedback’, 251
‘Harvest of Memories’, 251
‘Immortality’, 251
‘Ozark Rebounder’, 251
‘Perfume Counter’, 68, 251
reblooming forms, 68, 251
‘Sugar Blues’, 251
Iris Louisiana hybrids, 252,
343, 353, 357, 371, 377
‘Ann Chowning’, 252
‘Black Gamecock’, 252
‘Brushfire Moon’, 252
‘Geisha Eyes’, 252
Iris sibirica, 251 , 347, 354,
357 , 361, 362, 369, 373,
37 4, 376, 387
as alternative to bearded
irises, 69
‘Baby Sister’, 252
‘Butter and Sugar’, 252
‘Caesar’s Brother’, 251, 252
division, 79–80
seedheads, 105, 130
‘Super Ego’, 252
‘White Swirl’, 252
Iris spuria, 252, 344, 355, 357,
358
iron phosphate–based
products, 68
ironweed, 118
irrigation systems, 52,
384–385
Italian bugloss, 155
jack-in-the-pulpit, 160
Jacob’s ladder, 293
January / February
maintenance, 391
Japanese anemone, 70, 71,
156
Japanese beetle, 69, 386
Japanese burnet, 306
Japanese catmint, 274
Japanese forest grass, 228
Japanese meadowsweet, 213
Japanese painted fern, 65,
212
Japanese primrose, 296
Jerusalem sage, 284
‘Jindai’ Tatarian daisy, 170
Joe Pye weed, 65, 137, 210
‘Gateway’, 123, 208, 209
July maintenance, 387–388
June maintenance, 385–387
Jupiter’s beard, 182Kalimeris incisa, 170
Kalimeris mongolica, 170, 347,
353, 363, 364, 368, 373,
374
Kamchatka bugbane, 149
‘Kent Beauty’ ornamental
oregano, 276
Kirengeshoma koreana, 253
Kirengeshoma palmata, 32,
69, 252 , 350, 355, 357,
363, 364, 37 4
knautia, 254
Knautia macedonica, 253 , 344,
348, 356, 358, 359, 361,
362, 364, 367, 374, 376
‘Mars Midget’, 254
Melton pastels, 254
‘Thunder and Lightning’,
254
kniphofia, 47
Kniphofia hybrids, 254 , 346,
348, 354, 356, 358, 360,
367 , 369, 370, 373, 374,
37 6, 377
‘Alcazar’, 254
‘Earliest of All’, 254
‘Kingstone Flame’, 254
‘Pineapple Popsicle’, 254
Popsicle Series, 254
‘Primrose Beauty’, 254
‘Royal Standard’, 254
Korean angelica, 158
Korean wax bells, 253labeling plants, 49
lady fern, 212
lady’s mantle, 26, 99, 126, 127,
133, 152–153
‘Lambrook Silver’ artemisia,
162
lamb’s ears, 126, 130, 318
Lamiaceaeas attractive to beneficial
insects, 65
fourlined plant bug as
pest of, 70
plants included in, 149,
150 , 189, 190, 255, 256,
271, 273, 274, 276, 277,
282, 284, 290, 304, 318,
327 , 331
Lamium galeobdolon
‘Hermann’s Pride’, 255
‘Variegatum’, 255
lamium / Lamium, 14, 111,
350
Lamium maculatum, 255 ,
344, 353, 361, 362, 366,
373, 374, 376
‘Anne Greenaway’, 255
‘Beacon Silver’, 255
‘Pink Pewter’, 255
‘Shell Pink’, 255
‘White Nancy’, 255
lamprocapnos, 65
Lamprocapnos spectabilis,
200 , 201, 386
‘Gold Heart’, 201
lanceleaf coreopsis, 191
landscape industry, 85, 92
landscaping, professional
practices
amending soil, 42, 43
redesigning gardens, 61
seasonal approaches to
planting, 30, 46, 379, 383
tilling depth, 40
using photographs, 18, 19,
45
large-flowered calamint, 189
large-flowered comfrey, 324
larvae damage, 65
lateral flower head in plant
structure, 96
lateral leaf in plant structure,
96
Lavandula angustifolia, 256 ,
344
‘Lodden Blue’, 256
lavandula / Lavandula, 350,
356, 359, 367, 368, 373,
37 4, 376, 388
cutting back, 11 9
deadheading, 388
preference for alkaline
soil, 32
for winter interest, 130
lavender, 43, 119, 130, 134
lavender cotton, 116, 119, 306
lavenders, 384
layering and layered effect,
22, 57, 89, 112, 114