"Peter James" wrote in message
news:1i0l1ap.1xdilogtn5dzdN%pfjames2000@googlemail .com...
I purchased two small courgette plants from my local garden centre back
in March/April. One was the variety "Ambassador" a F1 hybrid that seems
to be well recommended in the gardening web sites. It has been a
conspicuous failure. Every fruit so far has rotted off before it gets
to a size worth picking. The other, alas I don't know the variety as
I've lost the plant label has been wonderful. A very heavy and healthy
cropper. This plant started producing fruits at the start of May. But
alas, I don't know its name or variety. Oh well, maybe blind chance
will do the same next year.

Sounds like "flower end rot". This happens if rain (or watering can) wets
inside a flower.

David.