with the tall growing 
more showy than the Perennials. 
Umbrella Palm 
How fo Plant Bog Plants. Al! annual bog plants should be planted in 
only wet soil, or no more than one inch of water above the soil. This 
is also the best way to plant the perennials; although Arrowhead, Cat- 
tails, and Pickerel Rush will tolerate water up to 6 inches deep. 
Annual Varieties 
51. Imperial Taro (Colocasia antiquorum illustris). This plant has 
leaves, resembling elephant ears, on stems from 3 to 4 feet high. They 
are a velvety green with blotches of dark brown and violet black. It is 
very effective as a centerpiece in a small pool. It also becomes a very 
satisfactory house plant during the winter by placing it in a jardiniere. 
52. Umbrella Palm (Cyperus alternifolius). These miniature palms 
are our best sellers in bog plants. They, too, make attractive house plants 
if they are treated the same as the Taro. 
53. Primrose Willow (Jussiaea longifolia). It has bright yellow flowers 
profusely borne in the axils of the leaves. These plants grow erect, 2 to 
3, feet high, with attractive, narrow foliage. See back cover for illus- 
tration. 
54. Egyptian Paper Plant (Cyperus papyrus). This plant has tufts of 
long, thread-like leaves growing on triangular stalks which are 5 to 8 
feet high. It requires rich soil and shallow water or moist ground. It is 
ideal for background planting. 
Perennial Varieties 
55. Giant Arrowhead (Sagittaria sagittifolia). Beautiful, arrow-shaped 
leaves growing on stems which are from 1 to 3 feet high. It flowers 
freely in a series of white spikes. 
56. Double-flowering Arrowhead (Sagittaria japonica florepleno). 
The same as the above, except that it develops a spike of beautiful, 
double-petaled flowers. 
POOL SCAVENGERS 
Scavengers perform a definite service in the pool. The snails 
eat algae and green scum the tadpoles devour decayed matter; 
and the clams or fresh water mussels act as continuous filters 
to keep the water clear. 
76. Livebearing Trapdoor Snails (Vivaparus malleatus). A large, 
hardy snail which bears live young and eats algae and green scum, keep- 
ing the water clear. One of the best scavengers for the pool. 
77. Coral or Red Ramshorn Snails (Planorbis rubrum). They are use- 
BOG PLANT 
Bog plants are very useful for obtaining that much desired natural effect 
in your pool. In formal pools plant them in the corners or in the center; 
in informal or natural pools plant them in clumps along the water’s edge 
lants in the background and the low growing 
plants in the foreground. For your convenience in selecting them, we are 
listing them as Annuals and Perennials; however, for best results a com- 
bination of the two should be used. You will find that the Annuals are 
ANNUAL & 
PERENNIAL 
§ : Ys 
Egyptian Paper Plant 
57. Bogbean (Menganthes trifoliata). A low growing plant with 
glossy, trifoliate leaves. It bears fragrant, white flowers fringed with 
pink and with a beard on each petal. 
58. Common Cattail (Typha latifolia). A favorite, native swamp plant; 
it is easy to grow and it is ornamental. 
59. Graceful Cattail (Typha angustifolia). This variety bears its dark 
brown flower spikes (cattails), on tall, graceful stems. 
60. Cardinal Flower (Lobelia cardinalis). A very attractive, native 
plant with spikes of fiery red flowers. It is very effective when planted 
in clumps along the edges of natural pools. 
61. Blue Flag (Iris versicolor). A very attractive, sword-leaved plant 
which has blue flowers. 
62. Sweet Flag (Acorus calamus var.) Green and white striped, saber- 
like leaves which grow about 2 feet high. 
63. Yellow Flag (Iris pseudacorus). This plant is the same as the Blue 
Flag except that the color of the flower is yellow, and it is taller growing. 
64. Floating Heart (Nymphoides peltatum). It has pads like a water- 
lily, and its flowers are small and bright yellow. It grows in 2 to 12 
inches of water. It should not be planted in the same containers with 
the water-lilies or in pools with natural soil bottoms because of its 
rapid growth. 
65. Forget-Me-Not (Myosotis scorpioides). Everybody knows this old 
favorite of moist places. It has small clusters of sky blue flowers which 
have a yellow eye; it is in bloom from spring until fall. 
66. Loosestrife (Lythrum roseum superbum). Late in the summer it 
breaks out in a mass of rose-colored flowers on spikes. The flowers are 
on stems which are up to 4 feet high. 
67. Pickerel Rush (Pontederia cordata). A useful plant for the shallow 
water along the edge of the pool. It has arrow-shaped leaves which are 
about 2 feet high. The flowers are blue and are borne on close set spikes. 
68. Water Canna (Thalia dealbata). It has broad, cannalike, glauxous 
leaves, 3 feet high, with panicles of purplish flowers on long stems. 
Imperial Taro 
Left: Natural pool planted with 
hardy water-lilies and bog plants. 
Inexpensive to construct. 
ful in aquariums as well as in pools and are very ornamental because 
of their red color. 
78. Black Snails (Planorbis cornens). The same as the Red Snail except 
that the body and shell are black. A good scavenger and very prolific. 
79. Melantho Snails (Melanopsis graellsi.) They have spiral shells 
like the “Horn of Plenty.’’ They are very active and very hardy. 
80. Clams or Fresh Water Mussels. They are of great value in clearing 
up green water. A microscope will show that green water is minute 
bodies of algae. Mussels live by filtering great quantities of the green 
water and retaining the algae as food. They operate best in a few inches 
of soil or sand on the bottom of pool where they partly bury themselves. 
(Continued on page 8) 
leat Joseph Lingg Aquatic Gardens Inc. * Ardsley, New York 
