Not sure it is possible to ID this, the roots look as it they are elongated because of the large pot. One bulb or is green from being on the surface of the soil. If I were just to take a guess maybe Iris Reticulata as there appears to be a small bulbil.
I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
It could be, or it could be triteleia, hard to tell. The roots just surprised me as I haven’t seen anything liked this. I’ve planted it in the borders now hoping it’s something good.
Hard to say @Dovefromabove, they were in a deep pot, growing downward with a tiny bulb above the white fleshy root. I’ve put them in the ground to see now
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Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.