VfOOLSOS & CO. '8 
need it, Iransplanting should be done. Division is generally best done when 
the plant is througli lowering, usually at the end of summer. If divided 
then, the replanted portions become well established before winter. Itia 
more frequently put oli until the time for *' making garden " in the sprlnff 
which, with the majority of plants, answers perfectly well. When the whcrie 
bed needs renewing, lilt tue clumps with their adhering earth, set tUem aside 
imder the stielier ol a fence or elsewhere, and give the bed a generous dress- 
lug of fine old manure, in resetting the pLints, their positions should be 
ch?jiged as far as possible, so as to give each a new spot. Division of clumps 
vith many dbrous roots and numerous buds may be performed with a sharp 
epade, cutting them into as many parts as may be desirable. Some clumps 
with larue roots, need more care ; the earth should be shaken out of these' 
and the mass divided by the use of a strong knife, taking care that catli 
piece of root has a bud attached. 
PROPAGATfNG HERBACEOUS PERENNIALS. 
Bt Seeds.— "While the seeds of some kinds may be kept for months, op 
several years, and will grow readily when sown, many must be sown as soon 
as ripe, else they will remain in the ground a whole year before they germi- 
nate, if they do so at all. "We bow the seeds of those which ripen before the 
middle of August, at once, and thus get plants large enough to endure the 
winter, with the protection of a cold frame, or of evergreen boughs. These 
are transplanted in spring, and some kinds will flower that year. 
Bt Ccttdtgs.— Some herbaceouB plants may be readily propagated by cut- 
tings of the young stems. To do this successfully, a propagating-house is 
needed, and the plants must be prepared the fall before. The plants are 
taken up and put into pots or boxes, and kept in a pit or cellar until Feb- 
ruary or March. Tliey are then placed in a warm greenhouse and started 
Into g^o^^'th; cuttimrs are made from the shoota, In the same manner as 
ordinary greenhouse plants are propagated. 
ALPINE PLANTS AND ROCK-WORK. 
There are raauy plants found growing wllH only In Alpine regions ; a por- 
tion of these will succeed in ordmary soil in the garden border, another por 
lion can only be eattsfactorily grown by imitating as far as may be thcii 
natural locutions ; this has led to tlie rock-work, or rock-garden. The 
popular notion of a rock-work is very far from the correct one. A structure 
arising abruptly from a lawn, built up with stones and mortxir in such a 
manner as to contain pockets, and these filled with any plants tlmt can be 
coaxed or forced to grow tlicre, without reference to their natural Imbitflla. 
may be a rock-WTorfc, but la not a rock-garden. Neither is a promiscuous 
heap of stones with tho Interstices fllled with earth a rock-garden. The 
rcaaona why Alpine plonts flourish better on a properly constructed rockery 
than clscwhcro arc, that while tho plant itself ia exposed to full sun, its very 
long and fine roots can run down in the crevices, where the soil is cool, and 
while continually moiBt is also constantly well drahied. Unless a rock-gardca 
ficcnrca these, tho chances are that the plants will do better In an ordinary 
border than on any rockery that fails to provide them. In building a rock- 
garden, let there bo an nbundanco of pockets and crevices of diflcrcnt sizes, 
Sllcd with leaf-mould if possible, but see that each one has a soil-connec- 
tion quite down to tho earth. When this la done, the roots will receive 
moisture from below by capillary ottractlon; If it is neglected, the plants -will 
be as badly off as if In flowci'-pots. and will probaI)ly fail. Thla essential 
being secured in a rock-garden^ it should be made to appear as much liko 
