266 GARDENING FOR BEGINNERS 



Many of the choicest exotic Filmies are hardy, or so nearly so 

 that they will thrive with only sufficient protection to keep out 

 the frost. Those above named British and New Zealand are 

 absolutely frost-proof, and make the bulk of their growth in the 

 coolest times of the year, a clear indication that high tempera- 

 ture is a mistake, and this indeed is often the cause of failure 

 where an exotic and maybe tropical origin misleads the culti- 

 vator who ignores the important facts that high elevation 

 means coolness even in the torrid zone. 



