If you leave them to flower outdoors, they probably won’t start to flower until sometime in mid August. They will get pretty big. If that’s what you’re going to do, I would go ahead and transplant to at least 5 gal buckets at minimum. Make a frame with bamboo sticks or garden poles affixed to whatever container you are using. Stretch trellis net across it. Top and train the branches, weaving through the net to keep them low, otherwise they’ll end up 6ft tall. Worry about the screen to block the light when the time comes later in July.
This is the kind of frame I’m talking about. Thats a 15gal fabric container. That was a clone I put out late. Your plants will be much larger
I don’t thank you’ll be abke to light dep them on your balcony. If you move them indoors to do this, I would apply sprays every other day for 3 applications before moving them inside. I use the mix listed HERE. I hear @JohnnyPotseed’s one and done mix listed on this site works well too.