Bulbs, Tuberous Plants and Grasses 281 



QUAMASH (Camassia esculent a). Blue, purple, whitish. May; 2 feet. 

 In loose spike. Flowers star-like, 10 to 40. Perfectly hardy. Bulb 

 used as food by the Indians. 



RED-HOT POKER (Kniphofia Pfitzeri). Scarlet, orange. Early 

 August to October; 3 to 4 feet. This is probably the most 

 gorgeous of all the varieties. Foot-long cones of bright 

 orange-scarlet tubular flowers, one hundred or more each, sur- 

 mounting an erect stalk 4 to 5 feet. Hardy south of New 

 Jersey, needs protection in Philadelphia, but must be lifted in 

 the North. Give warm, well-drained place with dark back- 

 ground for the best effects. Other named varieties range from 

 yellow to brick-red. One of the most startlingly effective plants. 

 Leaves three feet long, narrow and grass-like. Often catalogued 

 as Tritoma. 



SNAKE'S HEAD. See LILY, CHECKERED. 



SNOWDROP, COMMON (Galanthus nivalis). White. Earliest reliable 

 spring flowers; 3 to 4 inches. For cold sheltered places as well as 

 open. , GIANT (G. Elwesii). Var. Whittallil is best. 



SNOW FLAKE (Leucojum vernum and astivum). White; I foot. Like 

 large snowdrops; vernum flowers in March; cestivum in April and 

 May. Good border plants. 



SQUILL, TWO-LEAVED (Sdlla bifolia). Purplish blue. 4 to 6 inches. 

 A week later than Siberian Squill but more reliable; Var. Taurica 



has 10 to 20 flowers , SIBERIAN (S. Sibirtca), dark blue. Best 



true blue early bulb. March; 3 to 6 inches. For lawns, shrubberies. 



STAR OF BETHLEHEM (Ornithogalum umbellatum). White with green 

 veins and black centre. May; I foot. Escaped from old gardens. 

 Flowers in loose panicles. Excellent for naturalising. 



TRILLIUM See Wooo-LiLY or WAKEROBIN in NATIVE PLANTS, p. 96. 



TRITONIA, MONTBRETIA (T. Pottsi). Yellow, tinged red. T. crocosma- 

 flora, orange-crimson; Lax spikes, star-like flowers. August, 

 September; i to 2 feet. Hardy in well-drained but moist soil. 



TRITONIA. See RED-HOT POKER (above). 



TUBEROSE (Polianthes tuberosa). White. Very fragrant, August, 

 September; 2^ to 3 feet. In foot long spike carried on end of erect 

 stalk. Arching grass-like foliage. Plant in warm soil in early 

 summer. Double variety preferred. 



