122 ROGK GARDENING FOR AMATEURS 



out where they are to bloom. Those sown in late summer 

 should be kept in a cold frame during winter. 



THE EASY CAMPANULAS 



Unless otherwise mentioned, these can be grown in 

 the rock garden in soil composed equally of loam, and 

 leaf-soil or peat, sand and grit being freely intermixed. 

 Most of them do well on the level, but the trailing sorts 

 look best on rockwork. 



C. abietina. Quite an easy Bellflower, soon forming 

 a carpet of small green leaves, whence rise tall stems 

 bearing saucer-shaped, purple flowers in July. It blooms 

 badly if left alone too long, and ought to be divided every 

 two years or so. Increased by division after flowering. 



C. caespitosa (Tufted Harebell). Considerable con- 

 troversy has arisen as to the similarity of this to C. 

 pumila (pusilla), but the plants grown under either 

 name vary considerably. It bears dainty little bells of 

 blue, and can be grown almost anywhere in a 

 light soil. It is only from three to six inches high. 

 Increased by division or seeds. 



C. carpatica (Carpathian Bellflower). One of the 

 easy and indispensable Campanulas, native of Carpathia. 

 Well known for its erect, open, flattish blooms, varying 

 in colour from blue to white. It reaches a height of about 

 a foot, and soon forms a big patch. It should be grown 

 on the rougher parts of the rockery or near the edge of 

 the walk. C. turbinata, said to be a variety of this, 

 does not grow so tall, has hairy leaves and blue flowers, 



