340 GARDEN FLOWERS. 



Senecio. Groundsel. [Compositae.] An extensive genus 

 of composite plants. The hardy herbaceous kinds are of 

 little importance. S. elegans is an annual, requiring to be 

 sown in the open border in the month of April, and again 

 in June for a succession ; the double-flowered varieties, 

 which are very handsome, may be multiplied by cuttings, 

 and treated as perennial sub-shrubs. The cuttings are 

 struck in July or August. If for blooming in pots, they 

 are shifted on like Cinerarias ; but if for planting out in 

 the flower-garden, where they make admirable beds, they 

 may stand in the small pots till March, and then be re- 

 moved into pots two sizes larger, in which they remain 

 until they are planted out in the beginning of June, by 

 which time they will be in flower. The young plants should 

 be freely topped during autumn and winter, and the early 

 spring, to make them bushy. The double white and the 

 double purple are distinct, and very desirable kinds. 



Serratula. [Compositae.] A family of hardy herba- 

 ceous plants, generally purple-flowered, easily propagated by 

 division, and growing in common garden soil. 



Sheep Laurel. See Kalmia angustifolia. 



Shepherdia. Buffalo Berry. [Eleagnaceae.] Hardy de- 

 ciduous shrubs or small trees, very ornamental when in 

 fruit. The berr)' is eatable. Soil, deep sandy loam. Prop- 

 agated by seeds. The plants are dioecious. 



S. argentea (silvery); hardy tree; i6 feet; North America; 

 1820. S. Catiadeiisis (Canadian); hardy tree; 10 feet; North 

 America; 1759. 



Siberian Pea Tree. See Caragana. 



SiEGESBECKiA. [Compositae.] Hardy annuals, with yel- 

 low flowers, thriving in common garden soil. Sow in a hot- 

 bed in April, and transplant to the border in May. S. cor- 

 difolia^ Iberica^ Orientalis, and triangularis are the species. 

 S. Iberica has white flowers. 



