Cornus kousa var. chinensis - Chinese Dogwood

Hi all,

I recently bought a Chinese dogwood and unfortunately went on holiday after failing to include my newly bought plant in my watering instructions for the neighbour! It has clearly suffered and all the leaves have started to turn brown from the tips, I have watered since I returned home and there is a sharp delineation across half of all the leaves with the part nearest the plant remaining green and the leaf tips all now brown. Its about a metre tall and I am desperate to save it, is there anything I can do to increase its life chances now? Im a bit new to the gardening lark and don't want to do anything that may cause more harm..

Kind regards,

Dan