I have had some siams for several years, but they never bloom. I have moved them probably too often. I live in zone 8, but they survive the area, just will not bloom.
Certified GKH Gardening Expert
There are many reasons why this could be the case. This article will give you a good rundown on what is going on: https://www.gardeningknowhow.com/ornamental/bulbs/tulips/tulips-bloom-every-year.htm