help please with these strange plants from burford wildlife park

Whilst at burford wildlife centre we picked these seeds from what we thought were purple alliums. They grew well from seed then stopped at. 12 inches, didnt flower and resemble something from a swamp. Quite sure the seeds got mixed up but I live in hope next year something may happen. Any ideas ?

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Re: help please with these strange plants from burford wildlife park

Reply from Patricia Jones

Possibly Honesty, Lunaria annua
It’s a biannual and will flower in the second year. Seeds around the garden and is loved by bees

Re: help please with these strange plants from burford wildlife park

Reply from Andy

Thats a possibility thankyou any other ideas out there.