42 Making a Garden of Perennials 



Dlctamnus Gas Plant 



Fully described on page 32. 



Digi i alis Foxglo ve 



The form usually grown is treated as a 

 biennial, and with me, must be coldf ramed 

 the first year. Ambigua or grandiflora is 

 a perennial having pleasing pale yellow 

 flowers, and is a comparatively long-lived 

 plant. 



Ecliinops Globe Thistle 



This is a tall, interesting plant with 

 foliage somewhat like a thistle. E. Ritro 

 is the best. Its peculiar flower head con- 

 sists of a ball about an inch and a half 

 in diameter, from which spring, in close 

 array all over the ball, minute flowers of 

 a deep metallic blue. 



Eryngium Sea Holly 



A plant somewhat similar in appearance 

 to the Echinops, but smaller in all its 



