Hi everyone, We have purchased and planted an acer freemanii last February and it was developing well, with bright and healthy green leaves sprouting all over the branches. However, recently some of the leaves started turning reddish. There is no branch discolouration or fungus. We live in Lisbon (Portugal), right by the Atlantic Ocean in an area where gusts often carry salt residue, which could feasibly affect the health of some tree species. We are reaching the peak of the summer as well, and recently we have had a spell of very dry and sunny weather. Temperatures for the past two weeks have been similar to this week's What do you think may be causing this? Can it be fatal for the tree? What should I do to prevent it? Thanks for your help.