HI had this plum tree almost 2 years it was a wedding present for my daughter and her husband..Its a Victoria and its on my allotment as they have a back yard but no garden. sadly it's not looking too good the leaves are yellowing and there's no sign of any plums. Any advise please.
I did give it a seaweed feed a couple of weeks ago but it's not perked up
there are some potatoes planted close by could that be the problem?