296 ROCK GARDENS 



towards the end of May. Quite hardy, and easily grown. There 

 are several varieties, bearing flowers of different shades of 

 pink. 



K. glauca.— Moist, peaty soil. Of dwarf habit, growing i to 2 

 feet high, with smooth leaves, silvery below, and purplish-pink 

 flowers. A good rock garden shrub. 



K. hirsuta. — W6\s\, peaty soil. Leaves rather hairy. Of dwarf 

 habit, growing i foot high, and not very hardy. 



K. lafifolia.—yioxst, peaty soil. The largest-growing of the 

 family, reaching a height of 8 to 10 feet. Leaves are broad. Waxy 

 pink flowers in clusters. A very handsome shrub of slow growth, 

 having several varieties, the best being maxima, which has larger 

 and deeper-coloured flowers. MyrtifoUa is a dwarf-growing variety 

 with flowers as large as the type. A lovely little shrub. They can 

 all be propagated by cuttings or layers. 



Lapeyrousia {see Anomatheca) 



Lathraea Clandestina (Orobanchaceae) 



A very curious little parasitic plant, living on the roots of willow, 

 poplar, and beech trees, provided they are in boggy ground. Only 

 the flowers, which are of a lilac-purple colour, appear over the ground, 

 the stems and small white leaves remaining underground. 



Lathrus (Leguminosae), Pea 



In large rock gardens some of the rarer species of the everlasting 

 pea will be useful, for in no way are they more effective than when 

 falling over the face of a large rock. Some of the following kinds 

 are suitable for this purpose : — 



L. cyaneus (syn. Platystylis cyaneus). — Likes a light soil in a 

 sunny position. Grows about 9 inches high. Blue flowers in 

 April and May. Hardy, and of easy culture. This is an upright, 

 not trailing species. 



L. la^ifolius.— Indifferent to soil or position. A vigorous -growing 

 and trailing species, with rosy-coloured flowers. There are also 

 white varieties which are good. 



L. hirsutus (syn. Orobus hirsutus). — Quite hardy in any soil or 

 position. Of trailing habit. Bears a profusion of purple flowers 

 the whole summer. An attractive plant. 



L. rotundifolius. — Of easiest culture in any soil or position. It 

 is of trailing habit. Flowers very numerous, and of a bright rose- 

 pink colour. Useful for draping a rock. 



