It probably died an unnatural death, so I would think no.

I would try them, ya never know. If nothing sprouts give them a nice burial, Flora

If they were cut as flowers, they could not form seeds. If they were already starting to form seeds, they would take at least several weeks, supported by nutrients from the soil the plant is grows in, to become viable. So I would say it's very unlikely the seeds are viable. But, as Florazone said, never hurts to try.