96 ALPINE FLOWERS AND ROCK GARDENS. 



by their method of growth as to the best course to 

 pursue, but in view of a possible difficulty in deciding 

 in some cases the method of propagation has been 

 noted for every plant chosen for special remarks in 

 the later pages. This will remove any uncertainty. 

 Broadly speaking, plants with succulent stems spring- 

 ing from a constricted rootstock may be propagated 

 by cuttings, and plants with a rootstock which tends 

 to spread by means of tufts, outgrowths or offsets 

 by division. It is generally best to propagate by 

 cuttings in the summer, and by division in the winter. 

 Tufts of many of the Rockfoils will strike even in the 

 summer if they are drawn away from their parents, 

 pressed into moist soil, and shaded from hot sun until 

 re-established. So will the yellow Fumitor}^ {Cory- 

 dalis lutea)y which, pretty though it undeniably is 

 with its ferny foliage and yellow flower-spikes, is 

 almost a weed on my chalky ground, and has to be 

 restricted severely. The Stonecrops may be divided 

 and put out quite late in the spring. 



One may say of the propagation of Alpines, especi- 

 ally in propagation by seed, that it is a matter for 

 attention in advance of the actual arrangement of 

 the stones. The flower-lover who begins to sow directly 

 he contemplates a rock garden is Hkely to reap the 

 reward of foresight, for by the time his rockery is in 

 being he has a lot of useful material wherewith to 

 furnish it, and that at a trifling cost. 



