780 



THE .BOOK OF GARDENING. 



varies with the individual, those with very sensitive skins 

 naturally being the greatest sufferers. More robust than 

 obconic'a are kinds like P. sikkimensis, P. denticulata 

 cashmeriana, and P. rosea, all of which may be grown from 



seed, and are best 

 afforded a shady position 

 and a rich loamy soil. 

 Alpine Auriculas are 

 suitable, and their cul- 

 ture does not entail any- 

 thing more than care in 

 the matter of watering, 

 and their subsequent re- 

 moval to a shady border 

 after their period of 

 beauty is past. 



Cinerarias are some- 

 times used for display, 

 but showy though they 

 are they cannot be re- 

 commended on account 

 of the fondness for them 

 of the objectionable 

 Greenfly. The Common 

 Christmas Rose (Helle- 

 borus niger) may be 

 potted up for the win- 

 dow in early autumn 

 from the border, and 

 returned thereto in 

 late spring, employing 

 fresh plants each year. 

 Those which have been 

 kept indoors soon re- 

 cuperate when planted 

 outside. 



Allusion has already, 

 been made to several of 

 the best known half- 

 hardy annuals ; but there are many more, as well as a host 

 of hardy ones, which require nothing beyond a judicious thinning 

 as the seedlings begin to grow. All the best will be found 

 described in the Chapter dealing with " Annuals and Biennials." 

 Amongst other subjects diversified as to form and colour of 

 flower, some of the best and easiest to grow are : Deutzia 

 gracilis, with its graceful habit and pretty white flowers. 

 Hydrangea hortensis. Cytisus racemosus, an evergreen with bright 

 yellow spikes of flowers ; this latter requires to be cut back 



, Fig. 520. — Primula obconica. 



