I planted gregorii (sp) tulips one year as they are supposed to be hardier but I never saw them come up. Others have though. I do really love their color in the spring along with the crocus when all else is still pretty dull. And since they don't seem to survive well, it doesn't matter if they get inadvertently dug up while planting other things. I just stuff them back in and if they come back, great, if not , no loss. I just have to realize that I will have to replant every year with new bulbs. Less expensive ones of course. Which I guess is defeating the purpose but I have bought some expensive heirloom bulbs that either never came up at all or lasted one year, and rather weakly