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U. S. Department of Ag: 
‘culture 
CYPRIPEDIUM LISTING , 
Fall =~ 1952 
"The Lady Slipper Orchid" 
Cypripedivms, a very large, satisfactory family of showy, unique and mltie 
colored varieties, are one of the easiest of ell orchids to sie and wien 
very little care and attention will thrive wonde:Ttity weil. The ¢lowers, 
with the possible exception of the Cymbidium, witli cutlas% any other orcnid 
that we know of as a cut flower or on the plant. Their range of coior is 
very large, varying from whites through yellows, greens and the most 
brillant scarlet and deep purples. 
Their cultural requirements are very simple and Cypripediums are gener ally 
divided into two temperature groups - the intermediate growing Insigne and 
its hybrid family and the warmer, mottled=leaved group; However, vho 
majority do very well together and we do not feel a temperature Cistinetion 
is vital. In the following listing we designate these temperature groups 
by the letters I and W. 
In potting we recommend a good grade of Osmunda fibre with plenty of crock 
drainages We do not pot as firm as cattleyas and shift up strong viants for 
three years growth, Spring is the best time to repot, after flowering and 
before the new growths are too far advancede Many growers are now using 
soil composts with excellent results; however, for the beginner we feel 
Osmunda the easiest and best» 
When growing they demand plenty of water with daily syringing of the foliage, 
preferably in the morning hourse Do not syringe overhead during duil, dark, 
winter dayse Cypripediums should never go quite dry but do not cone them in 
a waterlogged state. In the Fall and early Winter when the flowev buas begin 
to show in the center of the growths, it is advisable to cut down a Labs 
on overhead syringing until the flower stems are showing. At this time select 
sunny days for pot watering. 
Ventillation = Give air whenever possible consistant with winter temperatures. 
In summer months a combination of proper shade, humidity and air will cid 
considerably in keeping high temperatures dowe 
Proper humidity is very important with Cypripediums as well as all orchids 
for ultimate growth and flowering. We try to maintain a daytime humidity 
of 60% = 70%. 
Shade Cypripediums approximately 20% heavier than Cattleyas, especially 
during the hot, bright months. During the time buds are setting and until 
flowering more light can be given but be careful not to yellow the foliage 
with too mech. For those interested in Lumite Orchid Shade Cloths, a new, 
proven plastic material, we will send information on request. 
Insecticides - If necessary to spray, we recommend a good D.D.Te emision for 
scales, etce For Red Spider a proven spray, such as Wilson's Supercide, is 
beste 
In the following descriptive listing we designate temperature groups. We 
distinguish between the continuous or everblooming types and those flowering 
once a yeare 
Feeding - We recommend Wilson's Orchid Fertilizer as developed by Dre Ow We 
Davidson of Rutgers University, 
LAGER & HURRELL 
ie —_— Sopien 
Summit, New Jersey 
Established 1896 
