My "Higasayama" maple started growing new leaves about a month ago. I started noticing that on certain branches the leaves are starting to brown/blacken around the borders and that some of the newer leaves seem to be curling. Other observations/facts: It has been unseasonably windy and cool/overcast. I typically water the tree once a week, more often if it is warm and sunny. There have been mushrooms sprouting around the base of the tree. I did plant 2 Hellebores about 2 feet away from the trunk of the tree on April 5. I'm wondering if it's just wind and my tree will recover - or if it's something more sinister like wilt. Your insights and thoughts are appreciated. Please let me know if you have any questions or need more pictures.