166 MAKING OF A FLOWER GARDEN 



tion, planting out the youngsters in their vacated 

 positions. 



There are three classes of plants which lend them- 

 selves very readily to propagation through root divi- 

 sion, layering and root offshoots. The first is found 

 in those plants which make an exuberant root system 

 of many fine feeding roots and many stems. A good ex- 

 ample of this class of plants is found in the Hydran- 

 gea aa-iorescens, which may be lifted, pulled apart and 

 the several plants reset without in any way disturb- 

 ing its growth intention. In this respect it differs 

 materially from Hydrangea pamiculata, which, while 

 making a generous root system, has but the one main 

 stem and so is incapable of subdivision. The former, 

 however, is similar in habit to many perennials which 

 are increased by root division — as the shasta daisies, 

 violets, daisies, etc. 



Often a plant of Hydrangea arhorescens purchased 

 from the florist will admit of the removal of two or 

 three smaller parts without seriously impairing the 

 appearance of the original plant and if these are set 

 out and well cared for they will quickly develop into 

 blossoming plants, for this form is an early and relia- 

 ble bloomer. 



Spiraea Anthony Waterer is another shrub which 

 may be increased by pulling apart the roots; indeed 

 this plant is benefited by occasional treatment of this 

 sort, doing much better and flowering more freely. 



