Crack in trunk of October Glory Maple
I had a 3 inch caliper, 15-17 foot tall October Glory Maple planted in April. I was watering it last week and noticed there was a 12 inch or so crack/line in the trunk (see pic attached). This crack faces South / SouthEast -- so I'm not sure if it is sun scald or what (the Tree Farm I boug the tree from said it was hard to tell but maybe it was sun scald -- I sent them pictures. They said usually sun scald happens on the west facing part of the trunk).
Anyways, just wondering if anyone knows what may have caused this and if I need to do anything / will it be a problem for the tree.
Thanks in advance!