
INFORMATION AND CULTURAL NOTES ON THE 
GROWING OF ORCHIDS 
Orchids comprise a vast family of which over 15,000 
species are now known, while the hybrids which have been raised 
in the last ten to twenty years are almost inumerable. Many of 
them produce exquisitely beautiful flowers of great lasting quality 
and are of easy culture. If treated in a commonsense manner, 
they are by far easier to grow than a great many other plants, 
provided some attention is paid to their requirements. 
TEMPERATURE 
The word “Intermediate” following a heading of the 
plant lists, means these plants do best in a house whose minimum 
temperature is 55° to 65° at night. A night heat of 55° as a min- 
imum on extreme cold nights, and 60° in moderate weather will 
be better for the plants than a higher temperature, especially if 
they are in bloom. 60° or 75° by day, or a few degrees more with 
sun heat and ventilation is good, and in Summer as low as outside 
conditions will permit. “Warm” means a minimum temperature 
of 65° to 75°. “Cool” means a minimum temperature of 40° to 55°. 
We have indicated in each case the type of house each variety 
prefers, but this is not an absolutely hard and fast rule, for we 
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