Apple Tree Leaf Curling
Our first apple tree. It's about 1.5M tall, bought it from Homebase. It has 2 nice apples on it but the leaves are curling. I can't see any sign of any insects, bugs etc.
It's in a pot (as you can see in the picture) with holes in the base and then the whole thing is in the ground.
Ground is clay - solid clay so I have dug down about 30cm and filled with compost, then put this pot on top.
I feed weekly and water regularly.
Am I doing anything wrong?
Thanks in advance.