224 MANURES FOR OTHER TREES 



Rosa centifolia grows in ordinary soils liberally 

 enriched with cow manure ; and the same manure 

 should be used for the moss rose {Rosa centifolia 

 muscosa). 



The most suitable manures for the culture of 

 climbers in greenhouses are {a) cow or pig manure 

 for light, and horse manure for heavy soils, which 

 should be applied as a mulch in the autumn, and 

 dug in the spring ; (6) Guano is also a valuable 

 solid manure for roses, at the rate of 1 oz. per 

 square yard, which should be forked in during the 

 month of April. 



Concerning manures, the Latin proverb, " quod 

 cibus est aliis, aliis est atre venenum," is applicable 

 to trees and other plants, and this the cultivator 

 should always bear in mind. 



Salix is benefited by applying from time to 

 time a manure containing guano, iron sulphate, 

 and kainit. 



Southernwood ^ is benefited by being occa- 

 sionally watered with a liquid manure containing 

 |- oz. each of sodium silicate and magnesium 

 sulphate to 2 gallons of water. 



Spiraeas^ should be watered with a liquid manure 

 containing ^ oz, each of nitrate of soda, lime super- 

 phosphate and iron sulphate to 2 gallons of water. 



' Ibid., pp. 95 and 87 respectively. 



