By Johncooke
United Kingdom 
i have a new rose garden. vigin soil. 10 standard roses. the ones at one end of the garden . shady area. are losing there leaves. no sign of infestation or discoloration
29 May, 2016
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A photo of two of the problem would be useful. Otherwise, when exactly were the roses planted and just how shady is the area where the problem is worst? What creates the shade (large trees nearby?)
29 May, 2016