Are you sure they are alive? If there's no foliage I wouldn't water them that much. It might cause rot. I wouldn't feed them again until you see some growth. Maybe a dose of B1 or Superthrive to get them started would be a good idea. It sounds a bit unussual but I have plenty of brugs that are quite alive that take their sweet time putting out foliage.

You can root green ones easiest if you do them like a small tip cutting and make a little humidity dome for them. I use the tall take out chinese soup clear container. Put perlite in the bottom few inches with holes in the lid and the bottom and water it well then put the lid on and watch for roots. When you start seeing them crack the lid open a little more each day until its off then you can transfer it to a little pot. You can use the little mini greenhouse things too but you might want to do it in a bright window if its really hot outside or at least in the shade. If they are pretty firm and not wimpy green you won't need to lid but use rooting hormone on the green ones. Its not too late to start seeds as long as you can keep them growing over the winter the first year.

Cuttings can take 6 weeks or more to root. I'd probably give it only some morning sun or mostly shade since your temps are very warm. Don't water anymore. You could give an occasional misting. If the soil gets bone dry, you could also dribble a bit of water around the edge of the pot, but don't get any water on the cutting or soil right around the cutting. That's what I would do anyway.

Andrew, I do not know who gave you that info, but I have never found that to be true. I have rooted literally nearly 1000 cuttings over the year and have never had an issue with them flowering the following year. The only thing I can think of is that maybe the root system would be more established the following season if you keep it growing all winter. The issue is that you will have to deal with Mites and other issues if you keep them indoors all winter under lights. Again I personally would your newly rooted plants go dormant depending on their root system, they can establish them selves next growing season. Good luck