ROCK GARDEN PLANTS 41 



leaved plant, with yellow flowers. It is of the easiest 

 culture aud must ever be of interest, though for some 

 its associations are of the saddest. 



Linaria. Toadflax. For rock crevices and the joints 

 in rough steps L. alpina is useful. L. antirrhinifolia 

 forms dense tufts covered with purple flowers, and is a 

 bright note of colour among the stones. Moist, sandy soil. 



Linum. Flax. The yellow L. flavum and the 

 exquisite Narbonne Flax (L. narbonnense) with sky-blue 

 flowers, are both good. The latter should be planted 

 in somewhat rich soil, if it is to bloom freely. 



Lychnis. Campion. The best of these is L. Lagascae 

 with bright rosy flowers. Rock fissures with gritty 

 soil. Seed. 



Mertensia. Little known but very graceful plants. 

 M. dahurica and M. alpina, both with drooping clusters 

 of bright blue flowers, may be grown in sandy soil. 

 Owing to their slender habit, the Mertensias should be 

 given sheltered positions. 



Myosotis. Forget-me-not. M. alpestris is a gem for 

 rocky places. Its light blue flower masses harmonise 

 perfectly with those of its relative M. dissitiflora, which 

 are of a deeper shade. Moist loam. 



Omphalodes. Navelwort. Well-drained sandy loam 

 suits these charming rock plants. O. Luciliae, with 

 glaucous foliage and lilac flowers, is hardy, and O. 

 verna (Creeping Forget-me-not) of traihng habit, bears 

 a profusion of bright blue and white blossoms. Seed 

 or division. 



Onosma. Golden Drop. Dense tufts of evergreen 

 foliage, with drooping clusters of bright yellow flowers. 

 O. tauricum does well in a sunny aspect with deep loam 

 and broken grit. 



Papa-uer. Poppy. The Alpine Poppy (P. alpinum) 

 is worthy of a place in the rock garden. The common 

 form has yellow flowers, with white centres. Seed. 



