22 Our Landscape Department will assist you in planning your Home Grounds 
Mugho Pine 
Philadelphia. Mock>Orange; 
Sweet Syringa 
These shrubs have a place in every shrub planting. They 
may be used to advantage as a border, a screen, or a fdler. 
If a specimen is wanted, the Philadelphus should be kept 
well pruned This plant is incorrectly called Syringa; the 
true Syringa is the lilac. 
Philadelphus coronarius. Mock-Orange. 8 to 10 ft. Plant 
this variety if you want the old-fashioned Mock-Orange 
with delightfully fragrant flowers. It is less showy than 
are some of the newer ones and of a stiff habit. 
P. coronarius aureus. 8 to 10 ft. A rather stiff grower 
with yellow foliage and deliciously fragrant flowers. 
P. cymosus, Conquete. Although this is one of the newer 
varieties, we believe that it will make a place for itself 
among the others. 
P. cymosus, Norma. Another new type. This one has 
mammoth single flowers and fine foliage. It is bushy 
and symmetrical. 
P. Gordonianus. 8 to 10 ft. An unusually strong, upright 
grower. Its pure white flowers are scentless 
P. Lemoinei, Avalanche. 3 to 4 ft. This dwarf grower has 
gracefully arching branches, snow-white fragrant flowers, 
and a vigorous habit. It is a real gem in the realm of 
small shrubs. 
P. virginalis. Virginal Mock-Orange. 7 to 8 ft. Here is the 
most spectacular member of this family. Its semi-double, 
large white flowers are produced in clusters that fairly 
bow down the branches. The bloom lasts throughout 
the summer, and the fragrance lasts with it. 
PICEA Abies (excelsa). Norway Spruce. 80 to 100 ft. 
This most popular member of the Spruce family is easy 
to transplant, hardy, and a rapid grower. It is pyramidal 
in shape and makes an excellent specimen. Very desir¬ 
able as a screen, hedge, or windbreak and is much used 
as a living Christmas tree to be planted later. The stiff 
needles are dark green. 
P. Douglasi. See Pseudotsuga taxijolia. 
P. glauca (canadensis). White Spruce. 50 to 60 ft. Al¬ 
though a slow grower, this evergreen is desirable due to 
its silvery foliage and dense habit. It develops into a 
stately specimen of close texture. 
P. pungens. Colorado Spruce. 70 to 80 ft. The branches 
are in distinct whorls and the needles shade from blue- 
green to silver-white. This is a handsome, symmetrical 
tree that makes an ideal lawn specimen. 
P. pungens Kosteriana (glauca pendula). Koster’s Blue 
Spruce. 50 to 60 ft. This most beautiful and rare Spruce 
has blue-gray foliage in addition to the attractive manner 
of growth of Pungens. 
PIERIS floribunda ( Andromeda floribunda). Mountain 
Andromeda. 4 to 5 ft. Dark, leathery, evergreen leaves 
and clusters of waxy white flowers make this an attrac¬ 
tive and desirable plant. It prefers shade and an acid soil. 
P. japonica (A. japonica ). Japanese Andromeda. 6 to 7 ft. 
Urn-shaped, waxy white flowers appear among the 
lustrous, evergreen leaves. The foliage is stained wine 
when young. 
PARTHENOCISSUS. See Ampelopsis Veitcbi. 
PEACH, Flowering. See Prunus persica. 
PEARL BUSH. See Exochorda. 
PEPPERBUSH, Sweet. See Clethra. 
PERENNIALS. Send for our current list of rock- and 
flower-garden plants. We keep an up-to-date stock. 
PERIWINKLE. See Vinca. 
PHOTINIA serrulata. Christmas-Berry. 8 to 10 ft. The 
evergreen, leathery leaves turn almost as red in the 
autumn as do the myriads of berries. This little-known 
plant should be used more to brighten up the winter 
landscape. 
PHYSOCARPUS opulifolius. See Spiraea opulijolia. 
PINE. See Pinus. 
PINE, Umbrella. See Sciadopitys. 
PINUS Mugo (montana). Mugho Pine. 2 to 3 ft. An 
attractive dwarf Pine with ascending branches covered 
with bright green foliage. It is good as a specimen, in a 
low planting, or in a rock-garden. 
P. pungens Tanyosho. Table Mountain Pine. A dwarf 
Pine which is valuable for its unique flat top and com¬ 
pact growth. Our plants are grafted and are true to type. 
P. Strobus. White Pine. 80 to 100 ft. This is probably 
the most adaptable and useful of the Pines. Its growth 
is rapid. With its long, flexible needles, whitish beneath, 
it is a wonderful tree for tall backgrounds. 
P. sylvestris. Scotch Pine. 60 to 90 ft. A hardy Pine but 
one that is more valuable as a timber tree than as an 
ornamental one. Its spreading, somewhat pendulous 
branches grow into a broad, round top that is quite 
picturesque. 
P. Thunbergi. Japanese Black Pine. 60 to 70 ft. Its 
interesting, irregular outline and stiff, dark green needles 
give this Pine a picturesque appearance. It is quite hardy. 
PINXTER-BLOOM. See Azalea nudiflora. 
PLATANUS occidentalis. Sycamore; Plane-Tree. 80 to 
100 ft. A rapid-growing, wide-spreading tree whose bark 
is the characteristic feature as it scales off in huge patches 
and thereby exposes the new white bark. It is striking 
in winter when the white bark is even more apparent. 
Valuable as a street tree on account of its ability to 
withstand the effects of dust and sun. 
PLUM, Flowering. See Prunus triloba. 
PLUM, Purple-leaf. See Prunus cerasijera. 
POLYGONUM Auberti. Silver Lace-Vine. A shrubby 
vine with dainty white flowers. See color, page 21. 
POMEGRANATE. See Punica. 
POPLAR, Tulip. See Liriodendron. 
POPULUS nigra italica. Lombardy Poplar. 60 to 80 ft. 
This is the true Italian Poplar noted for its tall, columnar 
growth which adapts it so well for formal effects or for 
narrow lanes. It is much used and very popular. 
Pieris japonica 
