Plants for a Rock Garden 39 



plants that form a carpet of foliage, but 

 the flower stalks rise higher. These in- 

 clude white rock cress (Arabis albida), 

 the permissible double buttercup (Ranun- 

 culus acris ft. /??.), the also permissible 

 double German catchfly (Lychnis vis- 

 caria), another double flower, " fair maids 

 of France " (Ranunculus aconitifolius), 

 Carpathian bellflower (Campanula Car- 

 patica), grass pink (Dianthus pluma- 

 rius), Iris pumila, crested iris (Iris cris- 

 tata), Christmas rose (Helleborus niger), 

 Phlox divaricata, Phlox ovata, Phlox re- 

 pens, foam flower (Tiarella cordifolia), 

 Veronica incana 9 Alyssum saxatile, Saxi- 

 fraga cordifolia, and various avens 

 (geum). 



Several of the primulas give a like ef- 

 fect if the planting is close as it should 

 be in a pocket. The best are the Eng- 

 lish primrose (Primula vulgaris), cowslip 



