128 LANDSCAPE GARDENING. 



Papaver, Poppy. — One of the most delicate and 

 beautiful of hardy plants is the Iceland poppy, Papaver 

 mulicaule. The Eoyal scarlet poppy, P. orientale, is a 

 large and very showy species. 



Pentstemon. — This genus numbers several of the 

 very best herbaceous plants known to horticulture. 

 'J'hey are hardy and easy to manage. Among the best 

 are P. digitalis, P. (/ra?idiflorus, P. puhescens, P. con- 

 fertus, P. harhahis Torreyi, P. acuminatus and P. 

 ovatus. There are several others, and not a i)oor one 

 among them. 



Peonv. — Too well known to need remark. Usually 

 grown alone on the lawn, but much finer >vhen massed in 

 the border against the shrubbery. Propagate by division. 



Phlox. — The well-known and showy perennial 

 phlox of the gardens is P. panlculatay often called P. 

 decussata, which has numberless fine varieties. Several 

 of the native species are also very useful for border 

 planting, especially P. maculata and P. divaricata. 



Rudheckia, Coneflower. — Large, strong-growing, 

 hardy plants. The best is the new variety. Golden 

 Glow, which belongs to the species R. laclniata. E. 

 maxima, R. hirta and R. Newmaiiii are excellent. 



SoLiDAGo, Goldenrod. — A characteristically Amer- 

 ican genus of incomparable beauty. The only reason 

 people do not plant them extensively is that they grow 

 wild so abundantly. But no garden should be without 

 its masses of goldenrod. The best species for ])lauting 

 are ^S'. Canadensis, S, sempervirens, S. jimcea, S. nemo- 

 ralis and S. speciosa. 



Spik.^a. — Several of the spiraeas are herbaceous. 

 They are all useful. The best known are S. arimcus, 

 8. astilhoides, S. palmaia and S. vemista. 



Trillium. — One of the most beautiful blossoms of 

 early si)ring. T. grandifiornm, bearing large, pure 

 white flowers, is best. Prefers a somewhat shady place. 



