36 POPULAR GARDEN FLOWERS 



hardy, but it is far from being tender, and often passes 

 severe winters unharmed. 



The following is a representative table of perennial 

 Bell-flowers : 



Seed of nearly all of these is procurable at a cheap rate, 

 and if it is sown out of doors in early summer, and the 

 plants thinned, they will bloom the following year, and 

 propagation can be effected afterwards by division in 

 spring. They are beautiful border plants, and the dwarf 

 sorts are good for the rockery. 



It will be observed that in all cases the species is blue, 

 and if it be true that this is Nature's most difficult 

 colour, which she has been longer elaborating than the 



