In article ,
David wrote:
The courgettes (three different varieties) are fruiting, but the fruits
are not swelling fully.

The yellow one, for example, grows fruit to about 5" long but only very
slim.
They don't swell (an early one did part way along near the base) and after
a while go a deeper yellow which suggests that they are ripe.

Regrettably not. It indicates that they have died (fruits are living
things, even off the plant), and you may as well cut them off and
compost them. They often do that at the start of the season, and
when the plants get virus (but you should see that on the leaves,
if so). I can't explain further than that.


Regards,
Nick Maclaren.