12 Alpine Plants. 
Allium narcissiflorum (S.W. Europe). 
A limestone-loving plant, best grown in a full 
south position. Where limestone cannot be had, 
strong clayey loam should be used mixed with 
gritstone. If planted on the level part of the 
rock-garden the place should be well drained. 
Allium Ostrowskianum (Turkestan). 
This species has bright rose-coloured upright 
flowers and blooms in early May. Treat like A. 
grandiflorum. 
Allium pedemontanum, sec Allium narcissiflorum, 
Allium senescens glaucum (Europe, Siberia). 
A late-flowering kind, lowering in September. 
Plant in ordinary soil. 
Allium triquetrum (S. Europe). 
One of the prettiest Alliums, with pendent 
flower-heads; beginning to flower in April, and 
continuing in flower for weeks. Plant in sun or 
shade, but preferably in shade, in ordinary soil. 
Alyssum alpestre (S. Europe). 
Treat like Alyssum pyrenaicum. 
Alyssum pyrenaicum (Pyrenees). 
A limestone-loving species requiring a little 
more care than the other Alyssums. Plant, tightly 
wedged between stones, in a warm dry crevice with 
a south aspect. Every spring, the plant must be 
carefully examined, as it does not root very deeply, 
and should the soil have become washed away from 
it at all in the course of the preceding winter, the 
deficiency must be made good with a little limestone 
