when does a courgette become a marrow?

just before we got hitched and went away on honeymoon, i popped down to our slightly neglected allotment to check it over before abandoning it for a few weeks. imagine my surprise when i clapped eyes on one of our courgette plants.

now i'm not up to date on the current EU directive on courgette size and when it should be termed a marrow, but this has to be the biggest one i've ever seen (approx 12cm end to end).

unfortunately we were unable to sample it as we hadn't time, so our neighbour was the grateful recipient of it along with a couple of lettuces.

hopefully we'll have something to tuck into soon!