Helenium autumnale, 230 ,
346, 349, 351, 352, 356,
358, 359, 367, 368, 369,
37 4, 375, 377
‘Moerheim Beauty’, 231
‘Waltraut’, 231
Helianthemum, 366
‘Ben Heckla’, 366
‘Rose Queen’, 366
Helianthemum nummularium,
232 , 344, 348, 353, 366,
372, 374, 375
‘Fire Dragon’, 232
Helianthus, 364, 368, 369, 375
‘Lemon Queen’, 234, 352,
361, 362
Helianthus angustifolius, 233
‘First Light’, 234
Helianthus ×laetiflorus, 345
Helianthus maximiliani, 234,
346, 351, 357, 377
Helianthus salicifolius, 122,
233 , 353, 357, 364, 372,
374
‘Low Down’, 233
Heliopsis helianthoides, 345,
34 9, 353, 356, 358, 359,
361, 362, 364, 366, 368,
37 5, 377
deadheading, 97
pruning before flowering,
137
‘Summer Sun’, 234 , 235
heliopsis / Heliopsis, 64, 105,
116, 130, 137, 235, 386,
390
Helleborus foetidus, 130, 236
helleborus / Helleborus, 127,
134, 344, 350
Helleborus ×hybridus, 236 ,
34 7, 349, 355, 358, 359,
361, 362, 371, 372, 374,
375
Helleborus niger, 236
Helleborus orientalis, 236
Hemerocallis, 237 , 349, 353,
356, 358, 359, 367, 369,
37 0, 372, 374, 376
deadheading, 98
dividing, 81
‘Mme. Bellum’, 104
‘Pardon Me’, 237
thrips as pest of, 72
herbicides, 32, 57, 61, 382
‘Herbstsonne’ coneflower,
302
‘Herrenhausen’ ornamental
oregano, 277
Hesperis matronalis, 239 ,
356, 359, 361, 362, 366,
367 , 374, 376
cutting down, 119
Heterotheca villosa, 240 , 344,
34 7, 351, 353, 364, 368,
372, 374, 376
‘Golden Sunshine’, 240
for winter interest, 104
heuchera / Heuchera, 350,
358, 360, 370, 372, 374,
376
‘Apple Crisp’, 241
‘Caramel’, 241
‘Chocolate Ruffles’, 241
‘Citronelle’, 241
‘Color Dream’, 241
deadheading to the
ground, 99
deadleafing, 134
‘Frosted Violet’, 241
planting time, 47, 241
‘Plum Pudding’, 241
‘Southern Comfort’, 241
‘Spellbound’, 241
Heuchera micrantha ‘Palace
Purple’, 116, 240 , 241, 352,
367 , 369, 371
Heuchera sanguinea, 99, 241 ,
352, 356, 371
‘Firefly’, 242
‘Snow Angel’, 242
‘Splendens’, 242
Heuchera villosa, 242 , 243
‘Caramel’, 243
Hibiscus moscheutos, 104,
243 , 343, 347, 349, 355,
356, 358, 359, 361, 362,
368, 371, 372, 374, 376
Cordial Series, 244
‘Lady Baltimore’, 244
‘Lord Baltimore’, 243
Splash Series, 244
Sundae Series, 244
Hiddenhaven
irrigation, 384–385
renovation, 34–35
through the seasons, 13,
14, 15, 17, 129
higher-maintenance plants,
26, 346
Himalayan fleeceflower, 283
Himalayan maidenhair, 212
Himalayan May apple, 292
hollyhock mallow, 270
hollyhocks, 64, 119, 150, 151
hoops, 384
horned violet, 340hosta / Hosta, 244 , 355, 358,
360 , 364, 369, 370, 371,
37 6, 377
‘Abiqua Drinking Gourd’,
245
‘Allan P. McConnell’, 245
‘Big Daddy’, 245
‘Blue Angel’, 245
‘Blue Mouse Ears’, 245
deadheading, 99
division, 80, 81
‘Fragrant Blue’, 245
‘Guacamole’, 245
‘Halcyon’, 245
‘June’, 245
‘Krossa Regal’, 245
‘Liberty’, 245
‘Loyalist’, 245
pests of, 65, 68, 72
‘Praying Hands’, 245
‘Sagae’, 245
seeds, 105
‘So Sweet’, 245
‘Sum and Substance’, 245
Hosta plantaginea, 245
Hosta sieboldiana, 244, 245
Hosta sieboldii, 244
Hosta ventricosa, 244, 245
×Huecherella ‘Sweet Tea’, 243
Hungarian speedwell, 100,
109, 338
hybrid globeflower, 335
Hydrangeaceae, 252
Hypericaceae, 246
Hypericum calycinum, 119,
246 , 344, 352, 364, 368,
373, 37 4Iberis sempervirens, 246 , 246,
24 7, 350, 354, 366, 373,
37 4, 376
cutting back, 109
pruning dead tips, 134
for winter interest, 130
Iceland poppy, 280
indeterminate flowering
pattern, 96
Indian pink, 318
insecticidal soaps, 65, 70
insect pests, 68–72, 132.
See also Encyclopedia of
Perennials
insect-plant companions,
65–66
insects, beneficial, 64–65
interrupted fern, 212
Inula, 352, 356, 358, 367, 371,
37 6, 377