revegeta666
Not ICMag Donor
It will probably heal well, but if you close the wound the tissue will re attach itself and the stem will be much stronger than staying split. But if you wanna leave it like that why not, I'd be curious to see the result.The further splitting is a concern for sure. Even if I'm careful when handling them, the tops will get heavier and a cause a strain exactly there. Maybe some support would be good.
The wounds I get on myself seem to heal faster and fight infections much better when exposed to air and light rather than being bandaged up. Not sure how well that translates to plants.