This will likely depend on the colony strength. Counting on a honey crop the first season may be optimistic. Mother Nature will decide, I'm not sure there is a long enough flow in our area. You need the colony strength to have the numbers to gather nectar WHEN it is available.

When you get 7 or 8 frames of bees, then they are ready for another box.

You can feed 1:1 but I would not overdo it as they will overfill the brood area with syrup and it's still too cool to dry it. They need the fuel to make the wax but you don't want a bunch of syrup in the honey comb. If they sock away syrup in the brood area pull the feed off. Fondant and pollen patty is the safer feed method this time of year. Apply patty in small quantities 1/4# per so it does not dry out or collect hive beetle larvae (yes we have beetles here).

I would ease them into the next box using foam or frame feeders as spacers to the outside. Another option is to alternate foundation in the frames to steer comb building and break up the space.

Melt some bees wax in a crock pot and use a roller to apply it 3 times to the frames/foundation to encourage comb building. (Hive & Garden has wax by the pound). So many folks clean frames, DRAWN COMB is the holy grail of bee keeping. Save that old comb the bees will clean it and re-use it right away. Best to dry out frames after extraction and store dry with light and ventilation, freezing will kill any moth larvae. Generally you will find the moth where pollen is stored though, less in honey comb.

Deb has a great point there, regarding brood boxes.

I was thinking you were just starting, don't know where that came from.

If you are in double deeps for brood it may take some time for them to fill the upper and move back down to the lower. If the lower box is still empty I'd not be worried about risk of swarming. You did not say you rotated so I assume not, which is I believe best to let the bees manage their own space. The only time I would rotate is if there was Zero brood in the lower. This is because any brood in the lower will be at the top, and the brood in the upper will be below a cap of honey. So if you rotate and have brood in the lower you will isolate that brood in the top of the hive with stores between them and the main brood area.

Once that second box is 3/4 full that would be the time to add a super. So have your gear ready.

If you have a double deep and 2 full boxes (lots of brood) already you might consider working towards a small split for a resource hive or to sell. Do you have any drone brood yet?

My very small colony finally woke up and it looks like they are growing maybe faster than I thought, I'm going to have to take inventory, should have done it today....