DESCRIPTIVE LIST OF THE BEST KINDS 227 



Gypsophila. Everyone, of course, knows Gypsophila 

 paniculata, that is such a favourite border plant, and 

 those having still to make the acquaintance of the rock- 

 garden kinds will find them equally delightful. They 

 belong to the Pink family (Caryophyllaceae). They 

 thrive in well-drained sandy loam, with lime rubble 

 intermixed, in a sunny place among the rocks, and look 

 best when their trailing growths can hang over some 

 rock face. Gypsophila repens, found on the European 

 Alps, is a beautiful trailing plant with grey leaves, and 

 a profusion of small pale pink flowers throughout 

 summer ; the variety rosea with deeper coloured blooms 

 is even more attractive. Gypsophila cerastioides, from 

 the Himalaya, forms a compact evergreen tuft bearing 

 small white flowers marked with pink in May. G. 

 Sundermanni forms a tuft of grey leaves and bears pink 

 blossoms in June. G. elegans is a pretty little white- 

 flowered sort, commonly treated as a hardy annual. 

 Propagation is by seeds sown in spring and late summer. 



Haberlea rhodopensis. A dainty little plant, native of 

 the Roumelian mountains, and belonging to the natural 

 order Gesneraceae. Its flowers are not unlike those of a 

 miniature Gloxinia. The Haberlea should be planted 

 in a rock cleft or stony bank facing north, in peat and 

 loam. From the tuft of leaves the short stems, bearing 

 drooping lilac-coloured blooms, rise in April. It is in- 

 creased by sowing seeds or by careful division. 



Helianthemum (Sun Rose). Trailing evergreen shrubs, 

 belonging to the natural order Cistaceae ; some of them 



