214 PLANT CULTURE 



SALVIA. The species 5. pratensis has very long spikes of 

 flowers in bright blue, rose and white. They flower in May, and 

 are exceedingly attractive. They all seed freely, and if sown early 

 in the Fall, will bloom the following Spring. 5. azurea and 5. a. 

 grandifiora are tall-growing species, with blue flowers. 



Propagation. They are easily increased from cuttings in the 

 Fall months, also by Fall-sown seeds. 



SANGUINARIA (Blood Root). 5. canadensis is a dwarf- 

 growing native plant that, in sunny positions, is one of the earliest 

 to open its flowers, which are pure white, about 2 inches across. 

 It is Spring-blooming and is used for borders and rock gardens. 

 It prefers a light soil. 



Propagation. It is increased from seeds and by division. 



SAPONARIA (Soapwort). S. officinalis (Bouncing Bet) is 

 naturalized over a wide area in the United States. The flowers are 

 usually double. S. ocymoidcs is one of the best rockwork trailers. 

 It passes the Winter with a mass of short growths near the crown; 

 these, on the approach of warm weather, grow very fast, subse- 

 quently forming wide-spreading masses of light or dark pink flowers. 

 5. 0. splendidissima has rosy-crimson flowers. The plants are in 

 full bloom during the latter part of May, with scattering flowers 

 for a long time after. 



Propagation. Seeds should be sown in September, and the 

 plants wintered in a frame. Early planting is necessary. Also 

 propagated by division. 



SARRACENIA (Pitcher Plant). In the District of Columbia 

 the only species which does not stand the Winter out of doors is 

 S. Drummondii. S. purpurea is the hardiest of the number when 

 plants are obtained from Northern sources. They should be planted 

 in a mixture of peat, sand and moss, and the surface given a coating 

 of moss, which must be kept damp, especially during the growing 

 season. Pockets of suitable soil should be made for them at the 

 margins of artificial lakes and ponds. Alkaline water is always 

 detrimental. (For other species see page 153.) 



Propagation. By seeds. 



SAXIFRAGA (Saxifrage). The extremes of temperature in 

 Summer and Winter work havoc with the great majority of the 

 species, especially those of the mossy and encrusted sections. 5. 

 peltata, a Californian species, does grandly where it enjo3-s moist 

 soil. The leaves are from i to 2 feet in length. The plant blooms 

 during the latter part of April. 5. sarmcniosa (.Aaron's Beard), a 



