GARDEN FLOWERS. Ill 



C, violacea (violet) ; hardy annual ; i foot ; flowers purple, in 

 July; Portugal; 1776. C. virgata (twiggy); hardy annual; i 

 foot ; flowers white, in July ; Persia ; 1820. 



Clethra. [Ericaceae.] A genus of hardy and tender 

 shrubs. The hardy species are natives of North America, 

 and are very valuable summer-flowering shrubs. They are 

 easily propagated by layers. 



C. acu7ninata (acuminate) ; hardy shrub ; 10 feet ; flowers 

 white, in August ; Carolina ; 1806. C. alnifolia (alder-leaved) ; 

 hardy shrub ; 4 feet ; flowers white, in August ; North Amer- 

 ica ; 1 73 1. C. paniculata (panicled) ; hardy shrub; 4 feet; 

 flowers white, in August ; North America ; 1770. C.tomeiitosa 

 (downy) ; hardy shrub ; 4 feet ; flowers white, in August ; North 

 America; 1731. 



Clintonia. [Lobeliaceae.] Very pretty hardy annuals. 

 They are slender-growing dwarf plants, hanging over the 

 edges of the pots, if grown in pots, but forming very beauti- 

 ful objects on the ground, being so much covered with blos- 

 soms as to hide the stems. Sow the seeds in pots in March; 

 put them in a frame, if with a little warmth, so much the 

 better; set them in feeders of water until germinated, then 

 thin the plants so as to give them room, and keep them 

 growing in frames till May, when those for the borders may be 

 turned out. They will very soon flower, and have a very 

 pretty appearance. To provide a succession, some should 

 be sown in the borders about May : these will flower when 

 those of the first sowing leave off. Many annuals may thus 

 be managed, so as to keep up a succession of bloom during 

 several months, by sowing at different seasons. C pulchei/a, 

 the best of the two species, is a much more interesting ob- 

 ject for pot-culture than nine-tenths of the plants grown iu 

 pots. Peaty soil, or a light mixture of leaf-mould, loam, and 

 sand, is the proper soil for them. Also called Downingia. 



C. elegans (elegant) ; half-hardy annual ; 6 inches ; flowers 



