They are very reliable and tend to come back well, or even naturalize. It's at least their third year in the same spot and there are only a couple fewer than I originally planted. A bit smaller, I admit. But if I took proper care of them, such as kept watering, weeding and fertilizing, they'd probably multiply. The spot where they grow is partially shaded, extremely dry and almost never watered. They share it with iris pallida.
They start out orange and develop the red and yellow as they mature but remain thin and delicate, as many lily-flowered tulips are.
