The only thing that comes to mind is move the plant base/pot to the corners of the tent as close as you can, then gently bend the tallest stalks towards the opposite corner of the tent and tie them down to a weight or stake.
The only other alternative is to bite the bullet and prune it down. Just chop the top foot or two off the plant, flower longer so the lower stalks make up the loss.
You can't let it burn though. You let it burn the whole plant can get shocked.