FLOWERING PLANTS 107 
soil to retain moisture. After the seeds come up, leave 
one strong plant in each pot. Plants grown from seeds 
sown in February will bloom in July. 
After the leaves are destroyed by frost, take up the 
roots and store them in a dry place where they will not 
freeze. Early plants may be produced by setting roots in 
five-inch flowerpots in March. If kept in a warm place, 
the plants will make a strong growth before it is time to 
set them out. Roots or plants may be set out of doors 
when all danger from frost is over. Plant cannas in rich 
garden soil mixed with about half its bulk of rotted ma- 
nure. Roots should be watered sparingly for a few days. 
After the plants are started, give them an abundance 
of water during the summer and keep the surface of the 
soil well cultivated. Lawn clippings will help to retain 
moisture. 
THE CANTERBURY BELL 
The Canterbury bell (Campanula) is a hardy biennial 
plant that blooms the second season after the seed is 
sown. The flowers are large and the colors vary through 
shades of lilac to blue, violet, and indigo, and from bluish 
white to carmine rose. The blooming period is during 
June and July, and the flowers are especially good for 
cutting. The plant grows to a height of two or three feet. 
Sow the seed in a light, warm soil. Keep the young 
plants growing all summer and cover them with leaves 
and coarse material in autumn. The following spring 
remove the covering and cultivate the soil. 
