58 ALPINE PLANTS. 
twice a year. It is a hard-wooded shrub, and 
will make quite a neat bush if this top-dressing 
is continued year by year. The compost must 
be worked amongst the branches, covering 
them well, then they will root freely from 
the old stems and continue to do so, making 
young growths on the top every year. The 
place where it is planted should be well 
drained, as it does not like damp during 
the winter. The best time to  top-dress 
is in the month of July or August. It will 
then root freely in the fresh compost before 
winter. L. Gastonz requires a similar place, but 
does better if planted between stones. Lime- 
stone suits it best. It should have plenty of 
depth of earth. The compost is made as 
rough as possible. JL. oleefolium. ‘This plant 
requires a rather different soil; a little peat 
added to the loam and grit is most valuable 
_—one part peat, one part sand, one part loam, 
and one part grit. Mix well together; plant 
on a sunny bank. This plant will grow well 
on the level, or on a sloping bank facing 
south-west. L. petreum requires a dry, sandy 
bank; full south. Use a mixture of three 
parts sand and one of rough loam; 
