Fritillary

I am not a gardener at all. But have always loved fritillaries. Last year i bought a bulb, planted it (in the spring) in a medium sized plant pot, and waited. It came up, grew a ‘stick’ about 30cm tall but that is where it stopped. No flowers, nothing beyond this twig.

What did i do wrong? And what should I do with it now? It has stayed round the back of the house since then, unchanged. I would love to think there is still hope I may get a flower from it somehow.

Thanks for your help.

bev