a con? , These questions might be raised by any orchid . 
aS We a grower. The answers were supplied by experienced on A 
2 = growers who can speak authoritatively on the e ne 
A y fertilization and growing of orchids. 
LLA 
WHAT IS WILSON'S 
ORCHID FERTILIZER? 
IS IT EVER USED AS A 
DRY FERTILIZER? 
WHAT IS 
ITS ANALYSIS? ................... 
/ HOW IS WIiSON’s 
“ORCHID FERTILIZER USED? 
This illustration shows the 
effects of nutrient deficien- 
cies on Cattleya Orchids. 
Note that plants lacking ni- 
trogen and phosphorus made 
little growth after being 
placed on these treatments. 
Plants lacking phosphorus all 
exhibited more or less die- 
back of shoots. 
IS THE IDEA OF 
ORCHID FEEDING NEW? 
HOW WAS WILSON'S 
ORCHID FERTILIZER DEVELOPED? 
SHOULD THIS SOLUTION BE MIXED FRESHLY 
EACH TIME OR MAY THE SOLUTION BE KEPT 
INDEFINITELY? 
The World's 
ta 
A special water soluble 10-10-10 fertilizer containing also all the necessary trace 
elements in proper ratio as proven by years of testing on orchids. 
Emphatically NO. It is always used diluted in water and the orchids are watered 
copiously with it. 
10% Nitrogen of which 5.32% is from Nitrate Nitrogen and 4.69% from Ammoni- 
acal Nitrogen, the eh a physiological balance; 10% ce Ree acid derived from 
Mono calcium phosphate and 10% Potassium Oxide derived from Potassium 
Nitrate. In addition it contains suitable amounts of calcium, sulphur, magnesium, 
manganese, iron, boron, zinc, copper and molybdenum to supply all elements 
necessary for good orchid growth. 
It is used in two ways, depending on the material in which. the orchids are 
being grown. 
When orchids are grown in gravel, 12 ounces (34 lb.) of Wilson’s Orchid 
Fertilizer are diluted in 100 gallons of water and the orchid pots are drenched 
3 times a week with this solution. 
When orchids are grown in osmundine (called also osmunda or peat) 3 ounces of 
Wilson’s Orchid Fertilizer are diluted in 100 gallons of water and the orchids are 
drenched with this solution once a week. This drenching takes the place of one of 
the regular waterings. 
y hy “ 
No tee 
Complete & 
| Welrreat 
i TKO Cl men? 
0 ee No aa 
Nitrogen | Phosphores 
No— it has been tried for over 50 years, but most of the poor results previously 
obtained have been due to over feeding or the lack of the proper physiological 
balance in the material used. Orchids are slow growing plants and will not stand 
much “forcing.” 
Through the results of many tests Dr. Davidson arrived at the formula now made 
as Wilson’s Orchid Fertilizer as the best and safest to use on orchids in the 
recommended dilutions. 
By the results of a long series of experiments conducted since 1946 in the orchid 
houses of the Floricultural Department of the N. J. Agricultural Experiment Station, 
by Dr. O. W. Davidson, noted orchid specialist. 
It may be kept in a dark tank indefinitely, without deterioration. 
Finest Play Foods 
