That depends on how hot it is and when did you water (or when did they get rain) for the last time.
I am lifting bulbs whose pots seem fairly dry and there's still some moisture from the last rain two weeks ago. Most have no leaves and roots but some have no leaves but keep living roots, in this case I cover them again.
I am lifting bulbs whose pots seem fairly dry and there's still some moisture from the last rain two weeks ago. Most have no leaves and roots but some have no leaves but keep living roots, in this case I cover them again.