188 



ALPINE FLOWERS FOR GARDENS 



[PART II. 



making it worthy of its work. It is also 

 useful as a border-plant, and for rough 

 rockwork South of Europe, flowering 

 freely with us in early summer. 



The preceding include all the kinds 

 that are worth growing, except in 

 botanical collections. The other kinds 

 enumerated in Catalogues are : G. m- 

 canum, lanuginosum, ovalifolium, ovatum, 

 tenuifolium, Wildenovii, and trigynum. 



CHEIRANTHUS ( Wallflower). 

 Perennial and biennial plants of 

 pleasant association with our subject, 

 one being the best of wall-gardeners. 

 They are mostly of easy culture and 

 increase. 



Cheiranthus cheiri (Wallflower). In a 

 book advocating the culture of alpine plants 

 on walls, we must not forget the old plant 

 that has so long dwelt on walls and ruins, 

 loving a wall better than a garden ; while 

 it grows rank in garden soil, it forms a 

 dwarf enduring bush on an old wall, and 

 grows even on walls that are new, planted 

 in mortar. There is no variety of the 

 Wallflower yet seen that is not worthy 

 of cultivation ; but the choice old double 

 kinds the double yellow, double purple, 

 double dark orange, are plants 

 worthy of a place beside the finest rock- 

 shrubs. These are the varieties most 

 worthy of a place on dry stony banks 

 near the rock-garden, and also on walls, 

 on which the common kind is likely to 

 find a home for itself. To scatter seeds 

 on any wall we wish to adorn with this 

 plant is enough, using seed of the common 

 dark or yellow Wallflower, or that of the 

 wild plant. 



Among other kinds are C. Marshall! 

 (Marshals Wallflower). This, which is 

 said to be a hybrid between Cheiranthus 

 Ochroleucus and Erysimum Perqffskinum, 

 is a half shrubby plant, 1 to l foot high, 

 with erect angular branches. The flowers 

 appear in spring or early summer, are 

 nearly f of an inch across, of a deep clear 

 orange at first, afterwards becoming some- 

 what paler. The fine orange-colour of 

 the flowers of this plant makes it a pretty 

 one for the rock-garden, in well-drained 

 soil. It is increased by cuttings, and a 



young stock should be kept up, as it is not 

 perennial, and is apt to perish in winter. 



Cheiranthus mutabilis (Madeira Wall- 

 flower). A low bushy plant, distinct, and of 

 much value as a plant for dry walls. The 

 flowers are a soft orange colour, the buds 

 forming a central boss of a dark red. 

 I find it hardy and of easy culture, but 

 it may be delicate in the north. Easily 

 increased by division. 



C. alpinus (Alpine Wallflower). This 

 handsome plant forms neat, rich green 

 tufts, 6 to 12 inches high ; in spring 

 covered with sulphur-coloured flowers. 

 The rock-garden is the best home for it ; 

 it does very well on level ground, but 

 is apt to get naked about the base, and 

 may perish on heavy soils in severe 

 winters ; it does best when often divided, 

 and the conditions that best suit it on 

 old walls, or even new walls made against 

 banks, as shown in the first part of this 

 book. Alps and Pyrenees, flowering in 

 spring and early summer. There are 

 several varieties. Syn., Erysimum Ochro- 

 leucum. 



CHIMAPHILA MACULATA 



(Spotted Wintergreen). A dwarf 

 wood plant of North America, having 

 leathery, shining leaves, the upper 

 surface of which is variegated with 

 white, and bearing whitish flowers 

 one to five on rather long stems. 

 The plant attains a height of 

 3 to 6 inches, and is a very pretty 

 one for a half shady and mossy, but 

 not wet, place in the rock-garden, 

 associating well with such plants as 

 the Pyrola, and succeeding best in 

 very sandy decomposed leaf-soil. 



C. umbellata, with glossy unspotted 

 leaves, and somewhat larger reddish 

 flowers, is suited for like positions. 

 Both are rare in cultivation, and very 

 seldom seen well grown. They flower 

 in summer, and are increased by care- 

 ful division. 



CHIOGENES HISPIDULA (Creep- 

 ing Snowlen^y). A slender creeping 



