My pathetic courgettes

[Jimmy]

One of mine seemed to stop before all the others, I was a bit disappointed. Now that they've all died back, I can see there's a zeppelin sized marrow attached to the early finisher.... how did I miss that??

Stealth marrow, very cunning you know !
Jimmy

[Jimmy]

Possibly
https://en.wikipedia.org/wiki/Cloaking_device
Jimmy