HA RD Y PERENNIA L PLANTS. 1 89 



of the disc florets of oneflower to the stigmas of the other. Carefully keep 

 the in in a dry atmosphere until the seeds are ripe. Keep the seeds in 

 paper, properly labeled as to parentage, then about the middle of 

 March they can be sown. The resulting seedlings will be almost certain 

 to give some flowers passably good, probably some as good as the 

 parents, and possibly some even better. A great deal depends upon se- 

 lecting the parents ; but rules for this cannot be laid down, as the se 

 lection of apparently unpromising parents will sometimes give good re- 

 sults, showing that the crossing of these plants is little more than guess 

 work. 



Other Species of Chrysanthemum well worth growing are C. uligino- 

 sum, a tall growing plant, with large whiteflowers; very usefulforcut- 

 tiug. It blooms late and must have a deeply worked, rich, moist soil to 

 bring the flowers to perfection. If planted in dry soil it remains dwarf 

 and unattractive. C. coccineum is better known as Pyrethrum roseum ; 

 an early Summer blooming species, well worthy of extended culture. 

 Hundreds of varieties of it are in cultivation. It is not a difficult plant 

 to manage, thriving in well- drained borders; or on rockwork the plants 

 are thoroughly at home. They are well suited for providing flowers for 

 cutting. There are double forms in white, pink, carmine, rose, lilac and 

 yellow. They are increased in Spring by dividing the plants into small 

 pieces, and rooting in the sand bed of a cool house before potting. C. 

 leucanthemum is the Ox-eye Daisy Marguerite or white weed of the 

 meadows. So-called hybrids between this common plant and other 

 species Rent out recently are merely forms of other well known species; 

 there is absolutely no leucanthemum blood in them. C. parthenifolium 

 aureum is the Golden Feather, used in filling beds or for borders in Sum- 

 taer. It is a hardy plant, putting on its gayest colors early in the sea- 

 Jon ; but it is more satisfactory when raised annually from seeds. 



CLEHATIS During July and August one of the most useful plants for 

 producing white flowers is the herbaceous Clematis known as C. recta. 

 It grows from 2 to 3 feet high and if in deep rich soil the quantity of 

 flowers to a plant is very large. In C. tubulosa and C. Davidiana we 

 have two blue-flowered species from China. The last named is fragrant. 

 They are reliable plants for the herbaceous border, growing about 2 feet 

 high. They are all increased from seeds sown as soon as gathered; also 

 from division of the crowns, and by cuttings taken from the plants be- 

 fore coming into flower. 



COREOPSIS C. lanceolata and C. grandiflora are yellow-flowered 

 composites, much used for Summer cut flowers. Old plants may be 

 divided, but they are best raised from seeds, and the young plants put 

 out early where they are to bloom. C. verticillata is of little service for 

 cutting, but owing to the finely divided foliage it is a desirable border 

 plant. Easily increased by division. 



DELPHINIUfl (Larkspur) The species are numerous, most of them 

 being choice border perennials requiring deep, rich soil. They are propa- 

 gated principally by cuttings of the young growths in early Spring, from 

 seeds sown about the beginning of March, and by division of the roots 

 when dormant in Autumn or late Winter. D. grandiflorum and D. 

 formosum have numerous fine varieties, which are much grown for cut 

 flowers. 



