THE TYPES OF ROCK GARDEN 31 



it a rock garden) has this advantage over all 

 the other types, that it can be made in a very 

 limited space ; but it does not give scope for 

 the effective massing of plants ; its purpose 

 is merely to satisfy those who wish to grow 

 alpines, but do not desire to embark on any 

 large undertaking. 



We now come to the last, namely, the large 

 rock garden with its shrub-filled valleys. This 

 form, provided that the space is large enough 

 and its undulations sufficiently well and boldly 

 defined, can be made most effective ; but it is, 

 without doubt, the most difficult to lay out 

 really well, and the cost, owing to its size, must 

 be considerable, for in order to get the proper 

 effect it must be made on very generous lines. 

 Big, bold masses of rockwork are essential to 

 success, and these should so combine with the 

 undulations of the ground as to give it that 

 natural appearance which should be the 

 characteristic feature of all rock gardens. 



