298 ROCK GARDENS 



Leontopodium alpinum (Compositae) 



The well-known "Edelweiss" needs no description. It should 

 be planted on an exposed position in the rock garden, in full sun, 

 and in very poor, gritty soil, with plenty of lime rubbish added. If 

 grown in rich soil, its flowers become greenish, and it is liable to 

 die from over-feeding. An old wall is a good spot for it. There 

 are several varieties : L. maximum^ a larger form, and L. Lin- 

 dauicuju, flowering in late summer. 



Leucanthemum alpinum {see Chrysanthemum alpinum) 

 Leucojum {see Acis) 



Leucothoe (Ericaceae) 



Pretty evergreen shrubs, liking a peat or leaf-mould soil. Pro- 

 pagated by seeds or layers. 



L. acu7ninata (syn. Andromeda acumtnaia). — Grows about 2 

 feet high. Long, pointed leaves on arching stems, which in summer 

 are wreathed with small, bell-shaped, white flowers. A very choice 

 shrub, easy of culture, and quite hardy. 



L. axillaris^ L. Catesbaei, and L. racemosa^ which are all known 

 under the generic name of Andromeda, are very similar to the 

 above. 



L. Davisiae. — Forms a neat evergreen bush, 2 to 3 feet high. 

 Small leaves on slender stems, on the ends of which dense clusters 

 of small white flowers are produced in May. A very choice and 

 attractive little shrub, and though not as hardy as some of the 



Lewisia (Portulacaceae) 



Pretty plants, allied to the Mesembryanthemums. 



L. rediviva. — Wants a sunny, dry, and very well-drained spot 

 in gritty loam. Forms rosettes of rather long leaves on a woody 

 stalk. The flowers are large, about 3 inches across, rose-coloured 

 on the outer edge, shading to nearly white at the centre. They are 

 borne in the summer in such profusion as nearly to hide the plant. 

 A delicate plant, disliking much moisture in the winter, so it is 

 advisable to protect it with a sheet of glass during that time. A 

 moist choice plant, and should be grown by all whose climate 

 is suitable. 



L. Tweedyi. — Is even more beautiful and also more delicate. 

 The least excess of damp seems to prove fatal, so, unless in an 



