44 STUDIES IN GARDENING 



also rather more delicate, though easily grown in long, 

 narrow pockets of the rock garden and in light rubbly 

 soil where its runners have room to increase. It will 

 thrive either on the north or south side, but should 

 always have a cool root run. It is best moved and 

 divided every two or three years. It can be increased 

 by seed, though this is rather uncertain in germina- 

 tion unless sown as soon as ripe; by cuttings, as in 

 the case of C. caespitosa; or by division. 



C. Wilsoni is a pretty hybrid between C. puUa and 

 C. carpatica and more vigorous than C. pulla, though 

 of the same habit of growth. There appears also to 

 be one or two other hybrids of C. pulla, such as C. 

 haylodgensis, though these are of uncertain parentage. 

 C. Tommasiniana is another small Bluebell, with long 

 and very narrow pale blue flowers. It has a very 

 delicate beauty, but is quite easy to grow in chinks 

 of the rocks, thriving best in full sun. It must be 

 increased by division or cuttings. 



Campanula garganica is a small campanula with 

 leaves very like those of C. muralis, but with star- 

 shaped flowers. There appears to be some doubt as 

 to which of two varieties is the type. One of these 

 is more tufted than the other, has shiny green leaves, 

 and blue flowers. The other has leaves more bronze 

 or brown in colour, a more spreading habit of growth, 

 and flowers nearer to purple in their hue. Of this 

 form, which is perhaps the type, there is also a white 

 or almost white variety. Both are very beautiful, 

 and easily grown in narrow chinks of rock or even 



