Hi, I planted 3x 8 foot silver birches in august and one is starting to get yellow leaves, and I also noticed that a couple of the lower branches on one side are dead. The two others are doing well. The lawn you see around the trees was started mid october, so they are getting plenty of water. I dug out each hole the depth of the pot and approx twice the width of the pot, then backfilled with a mix of potting mix, a little gravel and a little of the original soil, which had a fair bit of clay in it. They have had 3 treatments of seasol since planting.
This is the only tree that has an issue. Any thoughts on what I am doing wrong, or could try?
Thanks
doogs82
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