ON ANNUALS AND BIENNIALS. 



219 



subjects for the mixed herbaceous border ; they are also suitable 

 for showy positions in the wild garden or woodland, in which 

 situations they should be sown or planted to form bold groups. 

 A large number of varieties are now sent out, amongst the 

 best being Meteor, double, yellow, striped with brown, ift. ; 

 Orange King, ift. ; Yellow Queen, double; Prince of Orange, 

 I ft. Calendula pluvialis {Dimorphotheca pluvialis\ the Cape 

 Marigold, is a free-growing subject, very effective in beds and 

 borders, producing large single white flowers, with golden centres, 

 the underside of the petals being of a rich maroon colour. It 

 is a plant somewhat resembling a Marguerite, and grows to a 

 height of I Sin. Flowers in June and July. 



Calliopsis. — The plants 

 found in catalogues under 

 this name will be noted under 

 " Coreopsis." 



Callirhoe pedata (Poppy 

 Mallow) is an elegant mal- 

 vaceous plant with beautiful 

 saucer-shaped flowers of a 

 brilliant carmine, with a white 

 centre. It grows to a height 

 of 2ft. Seed should be sown 

 early in spring, steeping it well 

 before sowing, and transplant- 

 ing into a moderately dry soil, 

 in which position it will com- 

 mence to flower in July, and 

 will keep on until quite late 

 in the autumn. The variety 

 nana is a dwarf form, growing 

 ift. high, with flowers like the 

 type. It thrives best in poor 

 dry soil, and is very effective 

 in flower-beds and borders. 

 As the Callirhoes make tap- 

 roots, great care must be 

 taken in transplanting. 



Centaurea. — C. Cyanus 

 (Cornflower, Fig. 115) is one 

 of the loveliest of our blue- 

 flowered annuals. It is a 

 native plant, growing to a 



height of 3ft., and flowering in July. Although the typical 

 colour is a bright blue, considerable variation is shown, some 

 being found with pure white, others with purplish flowers, whilst 

 others again are of a deep rose. Several named varieties are 



Fig. 115. — Centaurea Cyanus. 



