[Cynthia, Prescott, AZ]

Don't separate them until you finally see new growth in the old set of leaves. This new side growth may be a result of damage to the growing center of the original plant. The original leaves may grow old and eventually die off with never again producing a new leaf in the center. If this happens, your keiki is really the only growing part of your plant and should be considered the rightfull owner of the root system. So don't rush things.