Grub wrote:
Thanks for the replies

Its kept on the east facing windowsil so gets, well not much during
the winter months I must say.

This will make the plant weak. Also houses are typically too dry for
growing many plants. A chilli is not an indoor plant which are typically
selected from those that grow in understory low light conditions.

The weakness will also make it more susceptible to diseases and attack by
insects and mites. Chillis and capsicums are warm climate and warm season
plants that like full sun to do their best. You don't say where you are so
I am guessing somewhat but you might do better to grow them as an annual
outdoors or at least in a sun-facing (away from the pole) window.

David