I 



264 THE BOOK OF GARDENING. 



growing freely all the summer. If flowers appear they must 

 be pinched out in the bud state, so that the whole energy of 

 the plant may be directed towards making a good strong 

 specimen, able to withstand the winter. 



In the i|following list of species and varieties all the more 

 popular florists' flowers, as well as bulbs and tubers, have been 

 intentionally omitted, as these have been separately treated 

 in chapters devoted to those plants ; while further enumeration 

 of species and varieties will be found in the "Appendix." 



Achillea Ptarmica flore-pleno (Double Sneezewort) is a 

 useful border plant, growing 2ft. high, and producing an abundance 

 of double white flowers in corymbs ; these are invaluable for 

 cutting, and may be had from July to September. Propagation 

 by seeds, cuttings, or division. 



AcoNiTUM Napellus (Common Monk's Hood) is a tall Lark- 

 spur-like plant, growing from 3ft. to 4ft. high, and bearing numerous 



blue helmet-shaped flowers on 

 large terminal racemes. It is of 

 easy culture, and forms a very 

 effective border plant, suitable 

 also for shrubberies, wild gardens, 

 (Sec. ; it must, however, be planted 

 where there is no fear of cattle 

 getting at the roots, which are ex- 

 tremely poisonous, and although 

 quite distinct, have sometimes been 

 mistaken for Horse-radish, with 

 fatal results. The variety album 

 has white flowers, and bicoloi- blue 

 and white. Both varieties, as well 

 as the type, flower from June 

 to September. Propagated by 

 seeds or division. 



Agrcstemma coronaria. — A 

 synonym of Lychnis coronaria. 



Aquilegia (Columbine) is a 

 genus of free-flowering subjects 

 of easy culture in ordinary 

 garden soil. They are suitable 



for beds, borders, shrubberies, 

 Fig. 148.— Aquilegia Stuartii. „ j\u • • u ^ 



^ &c., and thrive in shady situa- 



tions. They are also very 

 beautiful when naturalised in grass ; and the flowers are also 

 prized for cutting, x^quilegias are propagated by seeds or by 

 division, the latter method being the only safe way to 



