QUALITY STOCK ATiLOW^COST 
PFEIFFER'S IRIS 
The Perennials oi Unusual Blendings of 
Color and Beauty 
Irises are undoubtedly one of the most popular of all the 
hardy perennials. No other perennials available to our gardens 
combine so many good qualities. They are inexpensive, ex¬ 
tremely hardy, may be grown under a great variety of condi¬ 
tions with a minimum amount of care, and they have a wonder¬ 
ful range of colors from the lightest pale yellow to rich gold 
and deep bronze, delicate pale blues, and lavenders to dark 
blue and violet to deepest purple, light pink to claret and deep 
maroon, all the shades of lavender, mauve, violet and pure 
white, with an endless array of combination colors. 
Irises are easy to grow and can be planted almost any time 
the ground is not frozen. They will do best in a sunny, well 
drained location in a medium loose, mellow soil. Irises must 
be planted shallow; many people plant too deep and the plants 
rot. The rhizome or fleshy part of the root should be just under 
the surface of the ground. If your location is a low spot where 
water will stand, it is advisable to make raised beds, so the 
water cannot stand around the roots. Good drainage is neces¬ 
sary. If the soil is sour, an application of hydrated lime is ad¬ 
visable. Never use manure. 
A WORD ABOUT PLANTS AND PRICES 
Our prices are based on strong, single divisions, and we always 
send out the best plants available. It should be understood that while 
we strongly advise planting in July and August, the plants are not as large or well developed as they are in 
the fall, but it is to your advantage to have the plants make their growth in your garden rather than in our 
own. For southern states, better results might be obtained if Irises are planted in September or October. 
MASS PLANTING ADVISABLE 
An Iris display in the garden is much more effective if they are planted in groups of from three to a 
dozen plants of each variety, and to stimulate an interest for mass planting, we are making attractively low 
prices by the dozenjon many varieties. 
COLLECTIONS 
Largely for the benefit of the beginner in Iris growing 
we are offering some exceptional collections and combina¬ 
tions listed on another page. For the Iris fancier who wants 
the best and knows just what he or she wants, we have a 
list of varieties that will appeal to you. 
GUARANTEE 
All plants are guaranteed to be true to name, vigorous 
and healthy when received. If found to be otherwise, we will 
either replace with true stock or refund your money. Mis¬ 
takes are made, but not intentionally. 
Prices include prepayment of postage in the United 
States only. 
A FEW REMARKS ABOUT IRIS ROT 
Please Read Carefully 
The development of root rot in bearded Iris is a condition that at 
times all Iris growers have to contend with. Some of the causes of this con¬ 
dition are too deep planting of the rhizomes, especially early in the spring, 
water standing around the plants, hot and humid atmosphere, abnormal 
cold weather in winter without any snow protection. 
THE REMEDY : Make raised beds or ridges, so water cannot 
stand around the plants, plant very shallow, the top of the rhizome should 
be at the surface of the ground. Next, if rot should develop, scrape the 
soil from around the rhizome, clean out the rotted parts, sprinkle with 
powdered sulphur, let the sun shine on the rhizome and you will soon be 
rid of rot. 
A light covering of straw or coarse hay put on after the ground 
freezes, will help to carry your plants safely through the winter. 
„ ^ Follow above instructions and you will have little, if any, trouble 
A BEAUTIFUL IRIS BORDER with rot. 
: 
HOW TO PLANT 
IRIS ROOTS 
Set plants in light, well 
drained soil where water 
will not stand. The rhizome 
or fleshy part of the root 
should be at the ground 
level. If soil is sour, ground 
limestone is beneficial. 
Use no fertilizer. 
12 
PLEASE USE THE ENCLOSED ORDER BLANK 
