Transplant shock or dead?

I recently bought a silver birch tree (Betula Utillis Jacquemontii) for my garden. It was a reasonably established one as I had just bought a new build house I wanted instant screening and a feature in the garden. It was advertised as 12-14cm girth and about 3m to 3.5m high and came in a 90L container. It arrived mid April after a few delays and had already had started blooming with a few dozen early leaves.

I went to plant it a few days later when it became apparent that it hadn't been in its container for very long. Had a very small root system which made me think that it was grown a beetroot tree that had been placed into this container not log ago for transport and to get rid of the last of their stock I can imagine. This was not what I was expecting!

Everything I've read has said only to plant a bereroot tree when dormant and I now found myself planting one in early bloom! I did my best to aid it with rootgrow and bone meal but since planting everything has come to a halt. No new foliage and the leaves that were there have wilted and in the last few day yellowed.

I can't tell if this is a state of transplant shock or if it has died completely? I'm hoping for a bit advice if there is anything I can do to help it? Would be quite disappointing if it doesn't come through as I wasn't the cheapest item.

 

Would have thought spring a very bad time to move a birch tree

Give it a good flood with the hose pipe

 

Thank you.

I know I don't know how I managed to find myself in this situation as I had it planned from late last year. I was expecting It to come before end of march but It got delayed. I wasn't to concerned at first as I thought I would of of had a much denser containerized root system than what I ended up with.

I have given it a few good soaks since but I'm also conscious of over watering? I'm finding a lot of contradicting information on or how much to water a new tree.

 

If you've given it a good soak then there's not much else you can do. Hope it picks up