HARDY PLANTS. 
100 
(white and semi-double), and Tom Thumb (white, large, ift.) ; 
C. punctata, white, spotted with red, summer, i8in. ; C. pyrami- 
dalis, blue, July to Sept., 4 to 6ft., and its variety alba (white) ; 
C. rapunculoides major, purplish-blue, June and July, 2ft.; C. 
Trachelium, blue, July, 2 to 3ft., Aug. to Sept., 3 to 4m. ; and 
its variety, album (white). Then there is the biennial species, 
C. Medium, better known as the Canterbury Bell. This bears 
blue, white, purple, and pink flowers freely in summer, and 
grows 2 to 3ft. high. Of this there are several distinct forms, 
as Calycanthema (with duplex flowers), Cup and Saucer, and 
Hose in Hose. The only annual species worthy of note here is 
C. Erinus, blush-rose or white, summer, 3 to 6in. The rockery 
or alpine species require to be grown in sunny positions. C. 
isophylla and its variety will do well in the chinks of old walls 
or in the chinks of the rockery. C. ccespitosa makes an 
excellent plant for growing in masses on the rockery or the 
margins of borders. C. pusilla also does well on old walls, and 
so does C. rotundifolia and its varieties. C. carpatica may be 
grown as an edging to borders or in masses on the margins 
thereof. May also be grown as a rockery plant. All do best 
in a well-drained and gritty, sandy loam. They must be kept 
moist in dry seasons. The tall kinds like a deep, rich soil. 
Species like rapunculoides, grandis, persicifolia, latifolia, and 
its varieties, and Trachelium, are excellent plants to grow 
in masses in the wild garden, or in shady borders or wood- 
land gardens. The other kinds will do well in partial shade 
or in full sun. The Canterbury Bell is a first-rate plant 
for naturalising on banks or for growing in masses in the 
border. A fine example of its adaptability for the latter 
purpose may be seen on the railway bank near Sutton, in 
Surrey. The bank there is a mass of white, blue and pink in 
summer. The annual species (C. Erinus) is suitable for 
rockery culture, the seed being sown in April. The best time 
to plant the alpine kinds is in March or April, and the others 
in autumn or spring. Nearly all the species mentioned herein 
may be raised from seed sown in sandy soil in a cold frame in 
April, and the seedlings transplanted later into their flowering 
positions. If the various species are required true to type it 
is better to increase them by division in autumn or spring, or 
by cuttings in gentle heat in spring. The Canterbury Bell 
may only be reared from seeds sown outdoors in April, or in 
heat in March. In both cases transplant the seedlings early, 
6in. apart, in a nursery bed, let them remain there till autumn, 
when plant in their flowering positions. 
Ca.nna.bis (Hemp). — A hardy annual with graceful 
foliage, belonging to the Nettle order (Urticaceae). C. sativa, 
