Got this quercus few months back and it leaved out aggressively in summer and was doing great. I see its leavs getting very dry which I guess is still very early as autumn just started and temp is still at 25-30 degrees Celsius. Can it be shedding leaves already or are these signs of drought ? Its still in nursery soil that stays wet so really doubt its underwatered. I see few buds (visible in closeup shot) but not sure if they will last till next spring to open. Any suggestions?