294 GARDEN FLOWERS. 



mouthed pots, where, for economy of space, they may re- 

 main for three or four weeks, and may be kept in the green- 

 house or in a frame. When they have grown so as almost 

 to touch one another, they may be potted separately in 

 pots three inches across, and placed under a garden light, 

 where, if need be, they can be covered against frost. Here 

 they may remain, with all the air that can be given in mild 

 days, until their roots fill the pots, when they must be re- 

 moved to five-inch pots, changing them without breaking the 

 balls of earth. They may be replaced in the frame, unless 

 the chances of frost have gone by, in which case the plants 

 may be set out in the garden. They do well in the flower- 

 garden if planted out in beds of rich light earth towards the 

 end of May. 



P. acuminata (pointed-leaved) ; half-hardy perennial ; 4 feet ; 

 flowers pale-purple, in July; North America; 1812. P. aris- 

 tata (awned) ; half-hardy perennial ; 6 inches ; flowers white, in 

 April ; Carolina ; 1828. P. stolonifera (creeping) ; hardy peren- 

 nial ; 6 inches ; flowers red and white, in May ; North America ; 

 1825. P. divaricata (early) ; hardy perennial ; i foot ; flowers 

 pale-purple, in May; North America; 1746. P. subulata (awl- 

 leaved) ; hardy perennial ; 6 inches ; flowers rose-color, in May ; 

 North America; 1786. P. Drummondii (Drummond's) ; half- 

 hardy annual ; I foot ; flowers purple-rose, striped, or white, in 

 July; Texas; 1835. P. maculata (spotted-stemmed); hardy 

 perennial ; 4 feet ; flowers purple, Jn July ; North America ; 

 1740. P. nivalis (snowy) ; hardy perennial ; 6 inches ; flowers 

 white, in April; North America ; 1820. P. omniflora (all-flow- 

 ering) ; hardy perennial; I foot; flowers white, in July; gar- 

 dens. P. paniculata (panicled) ; hardy perennial ; I foot ; 

 flowers various, in July; North America; 1732. P. setacea 

 (bristly) ; hardy perennial ; 6 inches ; flowers flesh-color, in 

 April; North America; 1786. P. suaveolens (sweet-scented) ; 

 hardy perennial ; 2 feet; flowers white, in July ; North Amer- 

 ica; 1766. 



