I would put it into the ground.
From my own outdoor experience; plants in the ground grew to be allot healthier and bigger than plants in a container.
This was over the course of a four year outdoor grow and the results were consistent every time.
Edit:
Let her grow and you will be surprised at how big an outdoor plant can get.
Also since you are outdoors you might want to plant a couple of more to be sure you get a female. You still have plenty of time, but you might want to start them soon.
Hope I was helpful. Good Growing to you.