37 



and should then have a space of one foot between the plants 

 and eighteen inches between the rows. It is very useful for 

 filling large vases on terrace walls and similar purposes, as 

 the plants grow twelve to eighteen inches high, and the foliage 

 does not suffer from frost in winter. Helleborus atrorubens, 

 H. caucascius, H.olympicus and others of that type commonly 

 known as Lent Roses may be raised from seed by similar 

 treatment to the above and will take quite as long to grow to 

 a flowering state ; they must be grown in permanent beds as 

 they object to frequent removals. They may also be increased 

 by division (see page 20). 



CLASS V. 

 Plants raised from cuttings under glass in May. 



Arabis alpina flore pleno. This plant is not easily pro- 

 pagated by division. If the weather is dry at the time many 

 of the pieces will shrivel up instead of growing, and in this 

 respect it differs considerably from the single variety ; cuttings 

 put in under handlights or in frames on a cool shady border 

 are easily rooted, and may then be hardened off and planted 

 out in the open ground until October ; they will then be nice 

 plants fit to go into the beds for flowering the following spring. 



'Phlox divaricata. This plant does not grow quickly the 

 first season whether raised by division or by cuttings, but 

 plants from cuttings although not so large as the others will 

 flower well the following spring, and will surprise those who 

 grow them for the first time. They should be put in a frame 

 in May on a cool border, and shaded from sunshine until 

 rooted, the soil for them must have an admixture of leaf mould 



