14 The Landscape Gardening Book 



pies do not transplant successfully ; may not bloom until the 

 second year unless sown very early; blossoms in May and, 

 if cut freely, on to October. 



3 — Helianthemum vulgare (or H. mutabile—this is a variety of 

 vulgare and the name most commonly found in catalogues) : 

 rock rose or sun rose; six inches high; will thrive in poor 

 soil but should be planted in a protected place, with south- 

 em exposure; growth is nearly evergreen, forming thick 

 mats; profusion of flowers, yellow in vulgare, pink and 

 pinkish white in mutabile; buy plants; blossoms in hot 

 weather — usually June or July. 



4 — Geranium sangnineum: cranesbill; eighteen inches high; 

 ordinary soil ; erect -growing, branched plant, foliage attrac- 

 tive and loose ; single, large crimson flowers ; may be raised 

 from seed, sown outdoors; easy to naturalize; blossoms 

 from June to August. 



+5 — Sedum Sieholdii: stonecrop; six to ten inches high; sandy 

 soil, which must surely be dry in winter; branches growing 

 up, then curving downward; the round leaves are bluish 

 with a rosy tint at the margins ; flowers rose-colored ; may be 

 raised from seed but it is better to buy plants ; blossoms in 

 August. 



6-^Silene maritima, flora plena: seaside catchfly, double-flow- 

 ered; trailing, and must be planted where its stems may 

 hang over a ledge of rock; ordinary sandy loam; white 

 flowers which weight the branches down; this does not 

 produce seed, therefore it is necessary to buy the plants; 

 blossoms in July and on. 



