Plant too big

I am making some major headway on my aero grow, infact its turned into a HUGE problem. I have a mother who has grow out of control. Because of my personal schedule I won't be able to make clones until late May. Should I just kill the planet and start on a better schuedule? should I keep the plant growing and try and trim her back?

Again I have 4 weeks before I need clones and not much more room for growth.

Thanks,

~Basement

just trim it. It will grow back by that time. Gl