ROSE TIME 



finest border plants. Pyramidalis, the Chimney Bell- June 

 flower, is seen oftener in pots than out of doors, but it is ^'^5 

 hardy, and makes an effective border plant. The type 

 is blue, and there is a white variety. Rotundifolia is the 

 blue native Harebell. Trachelium is a three-footer with 

 blue flowers. Turbinata, blue, and its white variety, 

 Alba, are dwarf growers. There are, we see, quite a 

 large number of beautiful Campanulas of which seed is 

 procurable, and they comprise really beautiful plants, 

 some suitable for the border, some for beds (notably the 

 Canterbury Bells), and some for rockeries. They give 

 us, too, a preponderance of blue, which is a compara- 

 tively scarce colour. 



Carnations are generally grown under names, and 

 these special florists' varieties are kept true by propaga- 

 tion from layers, as described in Chapter VII. But 

 beautiful Carnations, admirably qualified to adorn 

 borders, and to yield abundance of pretty and fragrant 

 bloom for cutting, can be grown from seed. The flowers 

 are not, of course, so large as those which one sees at 

 Carnation shows, nor are the petals so broad and evenly 

 folded, nor the colour markings so pure and well defined, 

 but they are extremely pretty all the same. 



Centaurea Macrocephala, the Giant Knapweed, with its 

 large heads of yellow flowers, is a notable plant ; and C, 

 montana, the blue perennial Cornflower, is popular. 



Red and White Valerians (Centra nthus Ruber) are 

 given to forming semi-wild colonies, and do not object 

 to chalky banks. 



Cephalaria Alpina, sometimes known as the Giant 

 Scabious, is a yellow-flowered perennial growing from 

 four to five feet high. 



The CerastiumSy or Snow-in-Summer, make dense 

 carpets of white foliage on the rockery and in the 

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