PERENNIALS 99 
garden than in their native haunts. Separate every 
few years; or every year, if conditions seem to 
warrant it. This for the majority of perennials; 
divide peonies every seventh year and let frax- 
inella and the everlasting pea alone indefinitely 
unless a transfer is absolutely necessary. 
It is a custom, but one altogether too infrequent, 
to plant some of the perennials—generally grown 
from seed—in pots. This seems to be the only 
way to get perfection out of the chimney bell- 
flower (Campanula pyramidalis). In pots the 
spikes of blue or white blossoms will shoot up 
five or six feet and there is nothing more beau- 
tiful for an early summer decorative change in 
the conservatory or for a porch or hall plant. All 
of the hardy primulas, but more particularly the 
English, Cashmere and Siebold primroses, the giant 
cowslip, the polyanthus and the border auricula, 
are remarkably handsome little pot plants for 
March and April indoors. The choicer pyreth- 
rums, trollius, Phlox divaricata and many of the 
alpines are quite as handsome in their way. All 
of the plants may be set out in the garden after 
blooming, though the chimney bellflower is gen- 
erally treated as a biennial and thrown away after 
blooming. _ 
There are two more uses for potted perennials. 
One is to keep a reserve store for filling gaps in 
the garden and the other is to solve the problem 
of those perennials, including some bulbous and 
tuberous plants, that are unreliably hardy if at all. 
