PLANTS FOR WINDOW GARDENING. 145 



ALOYSIA, OR LEMON VERBENA. 



A half-hardy deciduous shrub, from Chili; the only species 

 is A. citriodora, commonly called Lemon Verbena. It is 

 valuable only for the fragrance of the leaves, the flowers 

 being small, whitish lilac, and of little beauty. As a winter 

 plant it is of no value, as it needs a season of rest, which 

 must be given it in a cellar free from frost. 



The best treatment is, to plant it out in spring in the 

 flower border, where it will make vigorous growth. In the 

 fall, before the first frost, remove the plant with a ball of 

 earth to the cellar. In spring, trim the plant into a neat 

 shape, and re-plant it. If grown in pots, the proper soil is, 

 two parts of loam, two of leaf mould, and a slight mixture 

 of sand. While the plants are growing, give plenty of 

 water, but withhold it entirely during the winter. 



CALLA. 



The only plant of this genus, worthy of cultivation, is the 

 well-known Calla Lily (Ricliardia JEtliiopica}. It is too 

 familiar to our readers to need, description. To bloom the 

 plants well, they should have a season of rest, which may be 

 regulated so as to have bloom at any season, if we have sev- 

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