230 ROCK GARDENS 



Not difficult to grow. A lovely little plant which no rock garden 

 is complete without. 



A. Charpentieri. — Forms a dense cushion with bright red flowers. 

 Will do on a level in deep, gritty loam. 



A. ciliata. — Requires sunny fissure in deep, gritty, sandy loam. 

 Densely packed leaves, glabrous on the surface and downy on the 

 margins. Carmine-red flowers in June. 



A. cylindrica. — Requires a sunny fissure and deep root-run in 

 gritty loam. Stems rise about half an inch, with leaves which form 

 columns on the stems. Tufted habit. It has pure white solitary 

 flowers in April and May. This is, by some, thought to be a 

 variety of A. ciliata. 



A.foliosa. — Requires an open situation on the level in full sun. 

 Does best in good, deep, heavy limestone soil, with pieces of stone 

 added. Grows about 6 to 8 inches high, with rather large, 

 coarse, hairy leaves. It is free-growing, and will form a plant a 

 foot across in one year. Rather large umbels of rosy-lilac flowers. 

 A good plant, though much coarser than the type. 



A. glacialis. — Requires fully exposed, open, sunny position in 

 wet, very gritty soil, composed almost entirely of granite chips. 

 Forms spreading tufts, the leaves of which are completely hidden 

 in summer by the mass of the most lovely, pure, soft, rose-pink 

 flowers. A gem amongst gems, and as difficult to grow as it is 

 lovely, being one of those plants that have so far baffled nearly all 

 attempts to cultivate. It comes from the high moraines, and is 

 found growing there in wet debris. 



A. helvetica. — Requires partial exposure to the sun in a well- 

 drained spot tightly wedged between stones, which will guard it 

 from excessive moisture, whilst allowing the roots to work into the 

 gritty soil behind. It forms dense little masses of tiny ciliated 

 leaves in diminutive rosettes and grows fairly quickly. The white 

 flower, with a yellowish eye, is almost twice as large as the rosette 

 from which it rises. Blooms in July, and very freely. Hardy, but 

 requires careful cultivation, and is but short-lived. It is essentially 

 a limestone plant. A lovely little gem. Propagated by seeds. 



A. imbricata (syn. A. argented). — Sunny situation in light, well- 

 drained loam ; requires granite. Forms dense tufts of white, silvery 

 rosettes. The flowers are stemless and rest so thickly on the 

 rosettes as to overlap each other. Propagated by seeds and division. 



A. lactea. — Should have an eastern or western aspect, in gritty 

 loam. Vigorous habit. Numerous white flowers, with a yellow 

 throat, borne in umbels in June. Forms compact rosettes. Of 

 easy culture. 



A. Laggeri.— Light, gritty soil in partially shaded situation. 

 Tiny rosettes of sharp pointed leaves. Bright pink flowers, with a 



