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will destroy them if it is allowed to thrive, no other 

 operations are necessary beyond an occasional hoeing to keep 

 down weeds and to keep the soil in a healthy condition. If 

 the Violet fungus Ascochyta viola attacks the plants, it is 

 best to plant out on another bed the following year ; this 

 fungus is sometimes very destructive, and owing to the tender 

 nature of the foliage it is impossible to apply solutions strong 

 enough to stop an attack after it has developed seriously. 

 The best preventive is to grow the plants as vigorously as 

 possible by close attention to manuring, watering and 

 weeding. 



Waldsteinia trifolia. This is a very pretty, low-growing 

 plant allied to Potentilla, and useful for edgings to other 

 things ; if broken up after flowering, every piece will grow and 

 will make plants large enough for planting the following 

 autumn. 



CLASS III. 



Plants raised from seeds sown in the year previous to flowering. 



Alyssum saxatile nana. Raising this plant by division 

 is treated of on page 2 1 . Seed gives the most compact plants 

 and they come true to type ; in order to have plants large 

 enough for autumn planting it should be sown under glass early 

 in March, and transplanted to a prepared border outdoors as 

 soon as large enough. 



Daisy ({Qellis perennis). The double varieties come 

 tolerably true from seed if it is obtained from reliable sources ; 

 as the seed is small it should be sown in pans or boxes and 

 placed in a cool frame or pit, until the plants are large enough 



