HARDY HERBACEOUS PLANTS, ETC. 237 



weather sets in the last of Xoveniber or early December. In 

 the spring they should be uncovered as soon as the snow 

 disappears and some fine, well-rotted mannre be worked in 

 about them, when, with an abundance of rain to settle the 

 soil about the roots, the flowers will grow rapidly and be of 

 large size. 



YUCCA OR ADAM'S NEEDLE-AND-THREAD PLANT (Yucca 

 filamentosa), Fig. 137. A very beautiful and hardy plant, 

 producing striking effects on the lawn, with its long 

 upright narrow leaves and large panicle of creamy- white 



FIG. 137. YUCCA (Yucca filamentosd). 



flowers rising 4 or 5 feet high. It is especially appropriate 

 with evergreens in the background and among rocks. It 

 is easily propagated by division or from seed, and grows 

 many years without renewal. 



LILIES. No place is complete without some of the 

 species of this queen of flowers. Some of them are very 

 easily grown and give great satisfaction. For the best 

 results they should be planted in a deep, mellow soil, one 

 not affected by drouth and yet not wet. The bulbs should 

 be planted from 4 to 6 inches deep as early in the fall as 



