Normally two weeks. Better get crackin'. If the shed is really cool it might take three or four weeks, but I'd check them anyway.

You can check for callus and roots any time you want, as long as you don't allow them to dry out while you check. Usually, two weeks is the optimum time, but sometimes they might take a little longer. In my conditions and experience, more than three weeks usually means failure, but YMMV. Good luck! Kim