398 
INDEX. 
Heaths, mode of potting, 360 
shifting, when necessary, 360 
Heat, average degree of, for different kinds of hotbeds, 41 
Herbaceous grafting, 101 
Hiccories, different kinds of, 233 
Hoeing, different kinds of, 21 
uses of, 21 
Hollyhocks, treatment of, 380 
Hoole near Chester, rock work at, 329, 332 
Horse-radish, 152 
Hotbeds for tender annuals, when to make, 377 
of stable dung, mode of making, 39, 40 
of tan or decayed leaves, 41 
to make look neat, 42 
Hot manures, 38 
Hot water for plants, 69 
Humboldt’s method of obtaining layers, 78 
Hyacinths, culture of, 284 
Dutch mode of treating, 289 
exhibition of, at Shepherd’s Bush, 283 
forming a bed for, 50 
growing in glasses, 50 
manure for, 291 
planting in pots and boxes, 291 
propagation of, 290 
rotation of, with other bulbs, 292 
time for taking up the bulbs, 386 
Hybridizing, mode of performing, 366 
Hydrangea, culture of, 369 
origin of the specific name, 370 
I 
Implements for digging, 10 
Inarching, or grafting by approach, 103 
Insects, eggs of, when to search for, 375 
larva of, 124 
on plants in pots, 353 
Ivy, training over the ground, 319 
J 
January, operations in, 374 
Jerusalem artichoke, 173 
June, operations in, 385 
