In article ,
VinceG wrote:

I have three chilli plants in a large pot. The plants have flowered
twice but not produced any chillies. Can I do anything or should I give
up and try again with a new plant?

What is the soil and air temperature, and how much light do they get?
How much water do they get? You may want to scratch in some bone meal
around the plants, and hold off on any nitrogen fertilizer.

Insects could cross pollinate peppers but since it is winter in the UK,
that shouldn't be a problem. In general, these should be self
pollinating plants. You may try gently flicking the flowers next time,
or gently swab them with a Q-tip, going from flower to flower (if they
are all the same type of pepper).
--
- Billy
"Fascism should more properly be called corporatism because it is the
merger of state and corporate power." - Benito Mussolini.
http://www.youtube.com/watch?v=MyE5wjc4XOw
http://www.youtube.com/watch?v=b_vN0--mHug