The only thing you could really do is ReGrow the plant for some clones. That plant is basically done its life cycle.

So yuou could 1..

Cut the bud off dry it and smoke it..

Or Two..

Set your lights to 24Hr of light so it will go back into a Veg cycle. Then once its is healthys enough cut some clones from it and start a small crop in that shed you speak of.

good luck

kd