268 i THE NURSERY-MANUAL 



specially good results are sometimes potted and carried over 

 winter in a frame or cool house. 



Campsis (Trumpet-Creeper). Bignoniacece. 



Propagated by seeds, by greenwood cuttings under glass, by 

 hardwood and also by root-cuttings and layers. The plant is 

 mostly known as Tecoma (rather than Campsis) radicans. 



Canistrum. Bromeliaceae. 



Propagation as for nidularium, which see. 



Canna. Cannaceoe. 



The named garden cannas are propagated by division of the 

 large branching roots or rhizomes. Every large eye, with some 

 root and rhizome attached, may form an independent plant. Weak 

 eyes usually produce relatively weak plants, unless handled with 

 special care. These rhizome-cuttings are started in pots or boxes 

 under glass, so that the plants may be a half foot or foot high when 

 planting-out time comes with warm weather. The entire clump of 

 roots may be planted directly in the open if one does not need to 

 multiply the plants, or only partial division may be made ; this 

 gives stronger plants or masses under ordinary conditions. Fig. 57. 



Seeds grow readily if well matured, although they usually ger- 

 minate slowly and irregularly unless cut or filed to let in the 

 moisture. If sown in late winter or early spring over good bottom 

 heat and the plants shifted as needed, blooming plants may be had 

 the first year. Seeds give rise to new varieties, or at least to 

 variations. 



Cannabis (Hemp). Moracece. 



Grown from seeds sown in spring. 



Cantua. Polemoniacece. 



Handled by cuttings placed in sand under glass ; little known 

 in North America. 



Capparis (Caper). Capparidaceoe. 



In warm countries, grown from seeds. In greenhouses and cold 

 climates, propagated by cuttings of ripe shoots in sand under glass. 



Capsicum : Pepper. 



Caragana (Siberian Pea Tree). Leguminosce. 



Seeds are sown in autumn or spring ; if kept dry over winter, 

 they are soaked in warm water before sowing. Root-cuttings 



