104 



THE COMPLETE HOME LANDSCAPE 



The roots can then be laid their full length between the stones. 



By interspersing dwarf evergreens throughout the rock garden 

 an all-year effect is obtained, and the pigmy Spruces and Junipers seem 

 particularly happy in such a location. On the borders, some taller 

 growing, but more or less dense shrubs can be installed as a back- 

 ground and to give some height; and even in the rockery proper, 

 some of the more compact growers will relieve any flatness and lend 

 an appearance of age to the planting. 



If the rock garden boasts a pool, the moisture-loving plants should 

 be found in that vicinity; in fact the whole affair should duplicate a 

 piece of Alpine scenery. 



IRRIGATION 



As previously stated it is most important that the soil be kept moist. 

 One of the best methods of assuring this condition is to install a line 

 of small (two-inch) tile about one foot under ground at the head or 

 top of the rock garden, and connect it (by means of rubber hose) 

 to a faucet (Fig. 50, page 47). The trench in which the pipe is laid 

 should be dug with the bottom inclined toward the garden, and a 

 layer of crushed stone spread in it. Then the tile can be laid and 

 covered with stone or cinders. This insures a thorough soaking of 

 the soil around the plant roots and between the stones. 



Fig. 94. — Section to show construction details of a small, formal pool of concrete. Unless 



the sides of the hole were dug accurately, it would usually be necessary to brace the wall 



forms on the outside as well as the inside, and at the bottom as well as the top 



