HEDYCHIUM HELIOTROPIUM. 251 



may be made in autumn from any firm shoots, and in- 

 serted in pots or in tire open ground. If they are placed 

 in heat and kept shaded imtil roots are formed, good 

 plants are obtained much sooner than when placed in a 

 coldframe or in the open air. Named varieties are 

 grafted on the stock of any common strong cHmbing form. 



Hedychium (Indian Garland Flower). Siilaini?ie(T. 



Seeds, rarely. Increased by dividing the rhizomes in 

 spring, when the plants are repotted. 



Hedysarum. LcguDihiosa:. 



Propagation is effected by means of seeds and division. 

 Helenium. Coinposita;. 



Increased by seeds or divisions. 

 Helianthemum (Rock-Rose, Sun-Rose). Cistacea:. 



The annuals are raised from seeds. The perennials 

 may also be raised from seeds, but it is better to trust to 

 layers and to cuttings, which will root freely in a sandy 

 soil, if kept shaded until established. 



Helianthus, including Harpalium (Sunflower). Coiiiposita:. 

 By seeds, which may be sown in pots, and the seedlings 

 transferred, or in the open ground in spring. Also divi- 

 sions. Of perenniaf sorts, use the underground shoots or 

 "creepers," treating as for cuttings. 



Helichrysum, Elichrysiun (Everlastings). CotiipositiT. 



The annual species and the varieties of //. bractcaium 

 may be raised from seed, sown in a light heat in early 

 spring, and afterwards transplanted ; or sown in the open 

 ground a little later. The perennial species are increased 

 by cuttings in spring, in a close frame without heat. 



Heliconia. Scitamijiccr. 



May be increased by seeds, but the best method is by 

 division of the rootstock in spring when growth com- 

 mences. Separate ])ieces may be placed in pots, and 

 grown in a moist stove temperature, repotting when neces- 

 sary ; or they may be planted out in the stove, if desired. 



Heliotropium (Heliotrope). Borrav;inacec'c. 



Seeds. The common practice is to use cuttings. These 

 can be taken at almost any season, if good growing shoots 

 are to be had. They start readily in sand or soil on a cut- 

 ting bench, or under a frame. Plants for bedding are 



