HARDY PERENNIAL PLANTS 19 r 



planted in shrubbery borders and rockeries, or if wanted for cut 

 flowers they should be planted in beds. They are very sensitive to 

 frequent changes of location and once estabHshed should not be 

 disturbed. 



Propagation. By root division. Seeds of most of them are 

 freely ripened. If sown as soon as gathered, and kept in a cold- 

 frame, they germinate well; but the seedlings take two or three years 

 to make flowering plants. 



HEMEROCALLIS (Day Lily). H. fulva, the species so com- 

 mon in waste places all over the Eastern States, is not a native; 

 but with H. flava, less commonly seen, it has escaped from culti- 

 vation. H. minor {graminea) is the earliest to bloom, opening dur- 

 ing the latter half of May. H. Diimortierii has orange-yellow flowers 

 tinged with brown. H. Middendorffii is deep golden yellow. 



Propagation. The rarer species are successfully raised from 

 seed sown in Summer as soon as ripe, and the young plants allowed 

 to remain in the seed boxes until the following Spring, when they 

 may be planted out in rows to increase in size. The double-flowered 

 and variegated forms of H. fulva should be increased by division. 

 They are all desirable border plants. 



HEPATICA. One of the earliest Spring-flowering plants. In 

 their native habitats they are usually found growing on southern 

 slopes partially shaded by the foliage of trees and shrubs in Summer, 

 but with the benefit of full sunshine when developing flowers and 

 seeds. Of the species H. triloba, the varieties are very numerous, 

 some of them having been long under cultivation in European gar- 

 dens, where they are highly prized. H. t. rubra is bright red; H. t. 

 alba, white; H. t. carulea, lilac. There are also double red and 

 double blue varieties, the former being very common, the latter 

 somewhat scarce. H. angulosa is a distinct species, with very 

 large, blue flowers. H. angulosa also has white, rose colored and 

 lilac forms. They should remain undisturbed from year to year. 



Propagation. It is easiest propagated by division in Autumn. 



HEUGHERA (Alum Root. Coral Bells). Of this genus there 

 are some twenty species native of North America, most of which 

 are hardly worth cultivating. There is one, however, which is 

 rightly considered as being among the most ornamental of late 

 Spring blooming perennials; this is H. sanguinea. It has long 

 panicles of reddish-pink or white flowers. Large plants which show 

 signs of weakness should be hfted, divided, and replanted. They 



