Rather a large difference in color I would say. I just planted some greigii this fall. They are supposed to be super hardy and multiply. Short little fellows so in the front of the bed. Can't remember the name but they are definitely red.
Yes, Tulipa greiggii , as it occurs in nature, is red; however there are various cultivars of it that have flowers in other colours, solids and striped.
You can see it in nature at this site: http://www.pacificbulbsociety....
