Problem with new plum tree
I planted a Victoria plum tree in about March of this year. It was a potted tree from a garden centre rather than a bare root tree.
It seemed to shoot well and fairly vigorously but every leaf/new growth that appeared has gone brown round the edges and then all over. It's still trying to sprout from the buds on the branches but the leaves look very unhealthy. We thought it might have been frost damage from a few cold nights in April but the problems are continuing.
It is planted in a reasonably sunny location and we have regularly watered it through any dry spells/days.
Does anyone have any thoughts on what the problem is here and how we can solve it?
Couple of photos attached.