Leylandi soil
Evening
I moved into s property 3 year ago and I wanted to screen off the neighbours whilst in the garden. We planted 5 leylandi but 2 where starting to die as tge drainage in this area is awful. We decide to put bamboo in instead and move the trees to the front. We build a retaining wall for them to go in and filled it will top soil. But oh my word they are going yellow I have fed them once with fish bone. But I'm not sure if the top soil is to sandy? Is there anything I can do to save them. We did but a layer of stone on the bottom before filling. All help appreciated
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