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XXXIX. On the Cultivation of Horse-radish. By Mr. Joseph 

 Knight, F. H. S. 



Read June 5, 1810. 



The cultivation of this wholesome and useful vegetable 

 hitherto appears to have been much neglected. Being a 

 plant that thriyes in almost all soils and situations to greater 

 or less perfection, it has not demanded the particular atten- 

 tion of gardeners, nor have I the most favourable oppor- 

 tunity of cultivating it, although I now venture to lay the 

 following account before the Horticultural Society. 



Horse-radish thrives best in deep, soft, sandy loam, that is 

 not very dry in summer, nor inundated in winter : the situa- 

 tion must be open. 



Trench the ground three feet deep, and if fresh grass-land, 

 it should lie twelve months to pulverise, and will be improved 

 by growing a crop of potatoes the first summer. In the 

 following February procure your sets, in the choice of which 

 take the strongest crowns or leading buds from old plants, 

 cutting them about two inches long : when a sufficient quan- 

 tity is thus prepared, proceed to mark out the ground in four- 

 feet beds and one-foot alleys, by strong durable oak stakes, 

 then take from the first bed nine inches of the op soil, laying 

 it upon the adjoining bed ; after which take out an opening 

 at one end of the bed, in the common way of trenching, 

 fifteen inches deep from tiie present surface ; then level the 



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