I'm with cucamelon

Bloody things have self seeded in my greenhouse from last year.
Easily removed though.

 

Must admit that I can't see me growing them again next year, I have 6 plants
in the greenhouse this year and none of my family like the taste, its just a lot
of effort when no one likes them plus I had no luck in over winter the
roots /tubers and I treated them like a Dahlia.