how much longer do i have to flower outside??

and how do i get my plant to budd outside???

only nutes is 15-5-9

https://www.rollitup.org/members/th3-rippla-albums-frist-time-ever-growing-picture7085-day.jpg
https://www.rollitup.org/members/th3-rippla-albums-frist-time-ever-growing-picture7084-day.jpg
https://www.rollitup.org/members/th3-rippla-albums-frist-time-ever-growing-picture7086-stem.jpg

You need to switch to a higher Phosphorous (middle number) fert for flowering. You can let them go until the first frost.