26 ALPINE PLANTS. 
three parts sand and one part loam in a well- 
drained place. As the roots run freely under- 
ground it requires something light and easy of 
penetration. The sand keeps it dry in winter 
and helps to maintain moisture in summer. 
Gradually, as the plant gains strength, it will 
begin to occupy other soil near by. When you 
notice this escape from the original place care 
should be taken to add more sand to the soil 
where you see the young shoots coming through. 
If this course is adopted you will be able to keep 
it in good health for many years without much 
trouble. 
Campanula mirabilis is more suitable for 
the back part of the rockery. It requires deep 
loam and sand, in an elevated position, facing 
south-west. Space should be left for the leaves 
to expand—that is, do not plant small Alpines 
near, or they will be smothered by the leaves of 
the Campanula, which extend over tIft. in 
length in the season. C. Zoysiz (Carniola). 
Another rare Alpine species, and not much seen 
on rockeries. This species is of much easier 
culture than C. centsza, though requiring 
almost the same treatment and_ position. 
Top-dress carefully twice a year. It should 
