"Ivan" wrote in message news:a829a588-bf84-4502-ae1d-
No, I thought it might be blossom end rot, but it's a very small
dot ..
I will take a photo of it and post it somewhere.

Incidentally, should my plants require more calcium, would I be able
to add some lime to the soil, or is it too late now?

Uneven watering is the most common cause of blossom end rot. Liming takes
quite a while to have an effect, maybe for next year.

David