Hi,can anyone help? I have an acer palmatum 'Atropurpureum' in a large pot. I have had it for several years and it has been steadly growing well. However, there seems to be a problem this spring, the new leaves seem to be well grown and plentifull but they do not seem to be unfurling properly and seem quite limp. I have not treat it any differently, can anyone give any suggestions or advice?