128 
House Garden 
yuu iiiiiy iCciiii 
the cost of pipe corrosion 
U NTIL your home, your office or your factory 
becomes the victim of pipe corrosion you’ll 
never know the cost of leaking pipes. Then only 
will you realize that the plumber’s bill is but a 
small part of the expense. 
First there’s the interruption of the office routine—the loss 
of production in the factory—the confusion in the home. 
Next come the plumber, the plasterer, the paper hanger or 
decorator. Then come the bills, with the inventory of 
losses which only fire or water can effect. 
Yet there is a safeguard against corrosion—a genuine 
wrought iron pipe that resists the gnawing action of rust. 
A pipe with a life two to three times longer than steel—and 
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owners specify it by name — and look for the name 
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American holly, if it can only be given a 
suitable situation, protected from too much 
sun and mind, becomes one of the hand¬ 
somest of native small shrublike trees 
SHRUBS for SHADY PLACES 
{Continued from page 126) 
to a bronze colored or fiery red after the 
first frosts of autumn. In spring, they are 
green again with newly developed shoots. 
At this time too, they are covered with 
large masses of yellow flowers, which, after 
fertilization, produce bluish berries. 
Mahonia is not at all difficult to keep, but 
it should not be placed in a dry sandy soil 
and it should be protected from the icy 
blasts of winter. Lack of food and soil 
moisture make this shrub straggly in ap¬ 
pearance. Pruning is only necessary when 
it is too tall and when the lower leaves 
have disappeared, and then, under this 
circumstance, it is much better to replace 
the shrub with a younger growth. Propa¬ 
gation is carried out through seeds which 
develop rapidly. 
Some good shade enduring plants are 
’furnished by species of Berberis of which 
B. japonica {Mahonia japonica), and B. 
darmini are the best. The former is some- 
(times an intermediate host of wheat rust. 
This is also true of Berberis aristata which 
can exist in strongly shaded situations 
together with Berberis thunbergi. These 
species are propagated through seeds, 
layers, or through parting of old root 
stocks. 
The species of Cotoneaster are pri¬ 
marily used to fill in between other shrubs 
and bushes, and, since all of them do not 
require much light, any species can be 
successfully used for shaded spots. The 
evergreen, or partially evergreen species, 
prefer a somewhat protected situation, 
and this is especially true of the Asiatic 
species. These can be propagated through 
seeds or cuttings, the cuttings of evergreen 
forms being kept under glass. 
Quite a little shade can be endured by 
Ligustrum ovalifolium which retains its 
leaves far into the winter. The plant can ^ 
be kept in almost any form by pruning, 
and then, too, it is quite unassuming in its * 
soil requirements. Propagation can easily 
be carried out in the summer months ■ 
through herb-like cuttings placed diag¬ 
onally into a shaded spot of the soil where 
they must be kept sufficiently moist. 
Then the roots quickly develop. 
Attractive underbrush is formed by 
I.aurel whose flowers favorably compare 
to those of the Rhododendron. The twigs 
of the plant almost seem to crawl on the 
ground as if they could not support the 
masses of flowers which are so profusely 
formed during the spring. And when the 
autumn’s colder blasts have stripped the 
leaves from many trees and shrubs, the 
leathery leaves of Laurel are still bright 
green in color. The frost does not destroy 
it and neither is it capable of rolling up its 
leaves as is the case with Rhododendron. 
When Laurel is placed among the soft¬ 
woods this shrub appears to its best ad¬ 
vantage, since its bright green leaves 
contrast so wonderfully with the monoto¬ 
nous green of the conifers. 
Kalmia (laurel) is not suited for places ^ 
where the ground is wet. Older bushes i 
should be transplanted in the spring. ! 
Multiplying this bush is most rapidly and \ 
easily accomplished through layers. 
Exceptionally profuse in the coloring i 
of their flowers are the varieties of ’ 
Rhododendron. This plant will not en¬ 
dure lime in the soil and requires much ! 
moisture in dry weather. Each of the j 
many varieties and subvarieties can be i 
rejuvenated and propagated true to form ' ; 
through layers. Although the hybrids are , I 
weaker and not quite as hardy as the I 
{Continued on page 130) 
If California privet is allowed to 
grow undisturbed it will form a 
beautiful shrub and furnish 
sweet scented flowers for late 
summer 
Next to privet the most widely 
used shrub in America, Japa¬ 
nese barberry, wibh its flowers, 
fruit and foliage, has earned its 
popularity 
