ROCKWORK. 223 



where large stones abound, rock-gardens can be formed 

 with many variations. An idea for walks in such a gar- 

 den is given in figure 70, the rock-faced line of the 

 mound as shown in figure 69, forming the edge of the 

 walk all around. The outer edge of the outside mounds, 

 and also beyond, may be planted with shrubs and trees, 

 but these, especially the trees, should not be so dense all 

 around as to shut out the cool breezes in summer. If 

 such a rock-garden is formed where one or several 

 large shade trees stand, and the walks are carried near 

 or under these, and seats provided in the shade, and then 

 if a small stream of water can be had to pass through it, 

 about every requirement for a very complete rock-garden 

 would be met, and one suited to plants that like shade, 

 moisture, and dry places. 



Sometimes instead of sowing a slope in the pleasure 

 garden with grass, its surface may be converted into a 

 rockery. There is a chance in large rock-gardens for in- 

 troducing an almost endless variety in the shape of 

 grottos, steps, archways, springs, pools, cascades, 

 bridges, ledges, shelves, etc. , and it is not a difficult mat- 

 ter to render these remarkably interesting and attractive. 



In planting, the principles governing the arrangement 

 of groups of trees and shrubs, touched upon in previous 

 chapters, may be observed here. One part of the con- 

 struction may have trailers predominating, another ever- 

 greens, from the spiry dwarf Spruces and Junipers to 

 the Creeping Junipers and Ivies, still others may be de- 

 voted to alpine plants, upland and shade-loving ferns, 

 wild flowers, and even showy tender tropicals and green- 

 house plants may be introduced. In moist, shady places, 

 the grotesque Rex Begonias, Marantas, Dracenas, 

 Tradescantias, etc., would be effective. Cobaea scandens 

 is a climber of special value for such places. By using 

 good taste in the arrangement of the surface, rocks, 

 plants, and trees, and avoiding every thing like stiffness 



