66 Alpine Plants. 
Iris cristata (S.E. United States). 
This, like the other little bog Irises, lacustris and 
verna, requires to be well looked after. If planted 
near anything which grows to any size it will soon 
be lost. It should be planted in partial shade, on the 
edge of small bogs or near the path-sides, in dampish 
peaty soil. If planted on a damp bottom it should, 
however, be placed in full sun, so that its growth may 
ripen better for the following year’s blooms. In early 
spring, and again in autumn, top-dress with a mixture 
of peat, leaf-mould, and loam, worked well among the 
roots. 
Iris Douglasiana (California). 
To grow and flower this Iris well it must be 
planted in an elevated position, pressed close to a 
stone facing south or south-west, and then filled in 
with a compost of leaf-mould and rough loam mixed 
with a little grit. 
Iris lacustris (N. America). 
Treat like Iris cristata. 
Iris orchioides (Mts. of Turkestan). 
A beautiful and early-flowering bulbous species, 
so easy to grow and increase that no garden should 
be without it. It requires a similar position to Iris 
Douglasiana. Plant in a well-drained place, close to 
a rock or under a south wall, where the bulbs can 
get properly ripened during the autumn, at a 
depth of qin.,in equal parts of limestone and good 
loam. 
