^54 



Gardens for Small Country Houses. 



of rich compost behind 

 the rock face. Fig. 384 

 shows the charming effecl 

 of roughly - hewn rocky 

 steps leading down through 

 such a wall from the 

 terrace to the rock garden. 

 Such steps should not be 

 allowed to become over- 

 grown with herbage, 

 though small fry, like 

 E r i n u s alpinus, lonopsi- 

 dium acaule and Linaria 

 alpina, may be suffered 

 to grow in the interstices. 

 In the small bog garden 

 one must carefully avoid 

 such vigorous growers as 

 Gunnera, Rodgersia, 

 Saxifraga peltata and all 

 those plants which appear 

 in catalogues under the 

 heading " Bog and Water- 

 side Plants." The bog 

 should be devoted to 

 Primulas rosea, cock- 

 burniana, farinosa, 

 frondosa, japonica, 

 pulverulenta, c a p i t a t a , 

 denticulata, Sieboldii ; to 

 shortias, terrestrial orchids, 

 the choicer t r o 1 1 i u s e s , 

 dodecatheons and 

 mertensias. 

 The soil must be spongy and constantly moist, but at the same time well drained, 

 for nothmg worth growing will endure stagnant moisture. A few large, fiat slabs 

 of stone on the surface will be of great value in affording access to all parts of the 



:.^^ii 



FIG. 384. — ROCK STEPS LEADING FROM TERRACE THROUGH ROCK 

 WALL TO ROCK GARDEN. 



bog without injury to the 

 plants. Fig. 383 shows 

 cypripediums thoroughly 

 at home upon the upper 

 margin of a bog garden. 

 A moraine garden is 

 troublesome to construct, 

 but repays the trouble. 

 The essentials are very 

 sharp drainage and abund- 

 ance of moisture in dry 

 weather. Unless the supply 

 of water is very limited, 



INLET PIPE 



FIG. 385.— CONSTRUCTION OF SMALL MORAINE. 



