Back in "the day" Gramma T. used to dig her tulips up every year when it was warm enough to plant dahlias; the tulips then went into the shed to dry out *spread in single layers in carboard boxes) and the dahlias went into the garden. IN the fall, when fronst killed the tops of the dahlias, then the tulips got planted back as we dug the dahlias.

Major pita in my opinion.

Try to find some perennials that will co-exist wtith the tulips.