SEDTJM SOLIDAGO SPIR^A. 153 



SEDUM. 



Stone Crop. 



Sedum, from sedere. These plants, growing upon the bare 

 rock, look as if sitting upon it. The species are low succu- 

 lent, some of them pretty, others curious ; but none of them 

 remarkable in any way. Some look pretty on rock-work, and 

 others are frequently used for edgings to walks. The species 

 are very numerous. 



SOLIDAGO. 

 Golden Rod. 



This is an extensive family of native plants, some of them 

 showy, with dense spikes, or panicles of yellow flowers, in 

 August and September. A few of them look pretty in the 

 garden, and help to make up a variety. 



SPIK^JA. 



This genus affords numerous ornamental shrubs and herba- 

 ceous plants, some of them very desirable. Among the herba- 

 ceous are the following, which are all very hardy, and easily 

 propagated by dividing the roots. 



Spircea fitipendula. Dropwort. A very elegant species, 

 with tuberous roots like the Peony. Flowers white ; the buds 

 shaded with pink ; in corymbs ; two feet high ; from June to 

 August. The foliage is beautiful. 



S. filipendula plena. Double Dropwort. A very desirable 

 plant, with clusters of fine double white flowers, from June to 

 October. It is more dwarfish than the last; not more than one 

 foot high. The time to divide the tubers ofrfhese two varieties 

 is in August ; they will then flower strong, the next year. 



