I've a Vietnamese coriander, currently in the garden in a pot, that the label says will need a greenhouse over the winter. I don't have one! The obvious thing is to bring it indoors, but I don't have many windowsills and those I do have are either not very bright or, if they are bright, they get quite cold (plants placed in them have died in the past, I suspect of cold).
I can't think what to do. Is there such a thing as hanging shelves that you can hang off the inside of window frames? If so, does anyone think that would be warmer for the plants than sitting them on a windowsill right next to the cold?
Any other suggestions also gratefully received.