Identify this plant

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I ordered some plants, and when i got the they sent a quality bulb, in a bag with no information whatso ever. I planted it in a tub, it had a large bulb like a big onion, had green thick pointed foliage, developed 3 large buds, one has opened up into a baeutiful large Lilley/Peony salmon colour, lots of lilley type petals in the shape of a peony. Hope someone knows what it is.