[DD.]

Could it be a Melon, maybe Water Melon??  :blink:

The thickness of the stalk gives it away. Ever seen a melon with a stlk that thick?? Not even in T****

[peapod]

What is very big? Nothing to judge it against to get scale.
Looks a lot like Mrs Digger's pumpkins.

Its bigger than sons head now

How big is sons head? 

[Beetroot queen]

What is very big? Nothing to judge it against to get scale.
Looks a lot like Mrs Digger's pumpkins.

Its bigger than sons head now

How big is sons head? 

Big 

[The Norfolk Turkey]

I used to have a cousin everyone called 'melonhead' - I could ask him for a pic as a sort of standard?!    Im going for watermelon - I know nothing about growing them, but its the right colour!!