THE HORTICULTURAL SOCIETY OF NEW YORK 



ginally was to provide a home for alpine and rock plants. At the 

 present time, however, most good rock gardeners are inclined to 

 accept the late Reginald Farrer's definition of acceptable plants, 

 which — "includes everything that will look well in a rock garden." 

 If we accept this definition, there is no lack of material to draw 

 from that will thrive in our climate. 



In the Brooklyn Botanic Garden rock garden, in which glaciated boul- 

 ders are used, the general idea in construction was to simulate a rock- 

 strewn slope such as one would be likely to find on a terminal moraine 



Amongst the easily grown rock plants one might mention many 

 species of Saxifragas, such as 5". Cotyledon, S. cochlearis, and 

 5". Macnabiana, belonging in the group whose leaves show encrus- 

 tations of lime, and which can be readily grown by planting them in 

 well-drained soil in which there is a liberal mixture of broken lime- 

 stone. The mossy varieties of Saxifraga are not difficult to grow 



