Outdoor balcony grow

After week 6 of vegging. This girl is a hungry one! I probably could feed every watering but think i jus might up the dose a lil. I mean shes outside getting about 13.5 hours of daylight about 6 hours of direct sunlight. She still aint flowering get. Would really like it to becausr im running out of room to tie her down. I topped them again to slow growth a lil bit but she just jump back up. When do you guys think it should start flowering? thinkin bout puting black tarpover them to light dep them. Idk ill see if she flowers on her own this week if not ima have to force flower her.