Compo in Caithness writes
We have a 'Californian Wonder' sweet pepper at work that has already
produced two crops of peppers since last March and is now into its
third set of flowers. Anyone know how long a sweet pepper can live
and continue producing fruits? Or are we now into the realm of
experimental pepper growing?

It's one of the many things which is perennial in its home country, but
which we grow as an annual because the plants doesn't like our cold dark
winters. How well it does in the next few months depends on whether you
can give it its preferred combination of warmth and light. It's possible
to keep chilli peppers going, on a bright windowsill in a warm house,
although most people reckon you get a better start next season by
growing afresh from seed. But sweet peppers seem to be even more
demanding of warmth and light.
--
Kay