anesia seeds purple domina auto

I have defoliated many times and she just comes back bushy as hell in no time at all . Im leaving her alone now hoping she will start to grow in height as she's actually only a foot tall if that . I am deffo a believer in the pot size slowing down the start of flower , I don't recall waiting this long for other genetics to go into flower so im guessing my pot size has something to do with it. I may force it into flower this weekend by putting it into darkness for 48 hrs if its not showing many pistols by the weekend