c wrote:

How big should a watermelon vine be before watermelons grow please ?

I planted about 7 small plants a few months ago. The vines are about
2m long now. They flower but that is all they do. The leaves on the
vines are only about 3 inches long.

Is there a site where they have images on how big the vine gets to
give me an idea on how much growing the plant has to do before I get
watermelons growing please.

All I can say is that your watermelon vine is seriously demented. It should
have taken over your garden by now with big leaves up to 30cm in diameter.

Does the vine look healthy?

--
Regards

Lionel.