TEEATMENT OF PEEENNIALS 39 



C. grandiflora (now called Platycodon grandi- 

 flora) is a very beautiful bulbous root, and a slow 

 grower, but can be raised from seed, sown as soon 

 as ripe ; it flowers in August, and lasts a long time. 

 It has reddish stems with a soft blue bloom on 

 them, and is a very aristocratic-looking plant ; the 

 shoots show themselves very late in the spring, and 

 the place should always be marked before the 

 flowers die down, to prevent damage when the 

 beds are forked in the spring. Campanulas like 

 soft sandstone, or rough sand. 



Canterbury Bells. Campanula medium. These 

 are biennials, and should be sown in May for the 

 next year's flowering. Sow in pans or boxes in the 

 shade, and prick out into the nursery bed, remov- 

 ing them into their flowering quarters in early 

 autumn. You can get them in purple, mauve, 

 white, and, prettiest of all, clear bright pink ; they 

 look best in groups of from three to seven plants, 

 or more, together, either in separate colours or 

 mixed ; the cup and saucer (calycanthema) varieties 

 are the most showy. In a good soil these plants 

 will go on flowering if you pick off the blooms as 

 they fade; they grow best in a chalky soil and 



