Nick Maclaren wrote:

In article ,
Peter Robinson wrote:

Is the idea to leave them as long as possible up until the frost, or is
it just as well to take them inside now?

If the stem is still full of sap and the weather is dry, leave them.
Once the stem shrivels, they will gain nothing. They WILL ripen
further, even picked, if left in the sun (preferably indoors),
though the sun is rapidly weakening.

That is useful. The stems are still green as ever and they're growing
new leaves at the far ends, though I stopped letting them set fruit ages
ago. I'll leave them for a little while - it looks like there will be a
little more sun and warmth next week at least.

Peter