Several years ago, we were in the airport in Amsterdam and I decided that I had to have a bag of dutch tulips. Bought the tulips, put them in the basement and totally forgot about them until 2-3 years later! They weren't looking too bad, but not that great, either, so decided, what the heck, I'll plant them and see what happens. Well, this is year 5 and those tulips are just now coming up again...we have had over 100" of snow this year, so thought everything would die, not those tulips...best investment I ever bought in the plant department!!!