aaah writes
Thanks for that Kay. I'm not an expert gardener so I really don't
know.
It is actually in a silver dustbin. It is indeed large with thick
leaves and pale pink flowers.
On the basis of what you are saying, should I bring it into my
conservatory for the winter?
I would attach a pic but not worked out how to do it yet though. I
strongly believe that this is a pelargonium based on what everyone
has said.

Bring it in for the winter.

If it were me, I would let it alone (apart from watering it as needed)
as long as it stays in flower, which may well be right through to next
summer ;-)

But other people have given you the standard line on overwintering them.
You won't kill it, either way, so do what you would prefer.

aaah writes
Thanks for the excellent advice. Unfortunately we had to buy the
items in a hurry and the previous owners have now disappeared. I
think what has confused matters is that this must be the hardy
variety, whereas I have also had some of the showy non-hardy
variety
which have now died back... thanks again.

Why do you say it must be the hardy variety?

What are referred to as hardy geraniums are in the genus Geranium,
the
wild UK members of which are known as Cranesbill. They typically
have
blue or pale pink flowers, of darker pink (but never bright shocking
pink) or white. They are usually grown in the ground - they are not
so
showy as specimen plants so aren't usually grown singly in pots.

What are also colloquially known as geranium, but aren't, are in the
genus Pelargonium. They tend to have much brighter flowers, red, or
bright pinks. Never blue. And their leaves are thicker and stiffer
than
Geranium leaves. With the mild autumn we have had, there is no
reason
why they shouldn't still be in flower. I have one which has been
flowering continuously for four years (in a pot in the porch).

--
Kay