190 PRACTICAL PLANT PROPAGATION 



CERCIS. Judas Tree. Red Bud. 



*SEEDS. C. japonica and C. canadensis. Grow from seeds. Do not 

 bother with cuttings. 



C. japonica is superior to C. canadensis. 

 LAYERS. Mound. 



CHAM^ECYPARIS. Cypress. White Cedar. 

 (See Retinispora, which is similar.) 



CHILOPSIS. Desert Willow. 



CUTTINGS. Ripe wood under glass. 



CHIMONANTHUS. Chinese Allspice. 



SEEDS. Self seeds where seeds ripen properly or sow in warm green- 

 house. 

 LAYERS. Spring; they root by Autumn. 



CHIONANTHUS. Fringe Tree. 



*SEEDS. Store seeds in damp sand. Sow in Spring. It will be a year 



before seedlings appear. If preferred the seeds may be kept in 



flats of moist sand a whole year before sowing. 

 GRAFTING. May be grafted on the White Ash (Fraxinus americana) 



or the European Ash (F. excelsior}. This method is quicker than 



from seeds. May graft in greenhouse. 



CINNAMOMUM. (See Camphora.) 



CISTUS. Rock Rose. 



SEEDS. Seeds germinate nicely sown in Spring. 

 CUTTINGS. Spring or late Summer. 



CITRUS TRIFOLIATA. Hardy Orange. 



SEEDS. May be stored in moist sand and sown in Spring or sown in 

 greenhouse. For Orange and Lemon, see Orange. 



CLADRASTIS (Maackia). Yellow Wood. 



*SEEDS. Grow readily when they can be secured. 



ROOT CUTTINGS. C. tinctoria. Roots dug in early Winter, cut into 



three-inch lengths, kept in damp moss in cool place and started 



in pots indoors or in open ground. 

 LAYERS. During Summer. 



CLEMATIS. 



SEEDS. When sown out of doors in Spring germinate in three months. 



Better store in sand as soon as ripe. Sow as soon as ripe in 



greenhouse; place under greenhouse bench. 

 CUTTINGS. C. coccinea and others. Soft wood cuttings in Summer. 



Internode cuttings when soft wood root best. 

 LAYERS. Continuous layers are useful. 

 GRAFTING. Large flowering sorts are grafted on C. flammula or 



C. viticella. 



CLERODENDRON. 



SEEDS. Sow when ripe. 



CUTTINGS. Nearly ripe wood, rooted under glass in Summer. 



ROOT CUTTINGS. C. trichotomum and C. fcctidum. In early Spring 



from pieces of root dug from around old plants. Use pieces two 



inches long. 



