Lists of Dependable Perennials 41 



species macrantha persicifolia, rotundi- 

 folia (Blue Bells of Scotland) and Tra- 

 chelium, are the most reliable among the 

 group. The cup-and-saucer, and the 

 chimney bell flower, are biennials, bloom- 

 ing but once, and have to be wintered the 

 year prior in a coldframe. 



Centaureas Hard-heads 



Like an open sunny position. C. ma- 

 crocephala is the best, bearing thistle-like 

 golden yellow flowers. 



Coreopsis 



The species lanceolata, and C. grandi- 

 flora, have rich golden flowers of pleasing 

 form, splendid for cutting. They grow 

 about two feet high and bloom all summer 

 if not allowed to go to seed, but seldom 

 last over the third year. 



Delphiniums 



Have already been discussed. All the 

 named varieties are good, especially Bel- 

 ladonna. See page #6. 



