can you look at photo and let me know what this plant could be

Looks to me like... Mother of Millions (Kalanchoe laetivirens)
maybe? Or possibly... Mother of Thousands (Kalanchoe daigremontiana 'Jaws of Life')

thanks you for that i been informed, it set seed everywhere concerned whether to keep it
may be living in the north west of england will be too cold for it manythanks for the id what do the flowers look like?

Hey! That looks like the *real* K. daigremontiana! I wouldn't try to assign a cultivar name to it from that pic.

(K. laetivirens doesn't have mottled spots on the bottoms of the leaves, and its' leaves are a somewhat diff shape.)

Those aren't seeds, they're baby plants. If you live where they are not hardy, they can't cause a problem. The flowers are stunning, they are why I keep Kalanchoe plants around!