Can I plant tulip bulbs several years after purchase?
If they’re still firm to the touch – go for it. You’ve got nothing to lose by trying. Effort is cheap. And often tulips will bloom for you for years – not sure why the other poster thinks you have to throw them away after one spring’s bloom. I think that the bulbs you have might not be viable after years in a drawer – but again, if they’re firm, I’d absolutely plant them.