The blue ones are in my garden, and yes, they are beautiful 
But, they are vicious stranglers and I do not let them rampage over the garden. I've had them snarl bell peppers, cosmos okra and sunflowers.
I pickred that little pumpkin yesterday. It was too early, but it had turned orange and the blister beetles are after them as well as the dry weather. It wasn't very big, but is cute.
This was an impulsive plant, but I think we will look into gourds next year.
JudyAnn~
I like the idea of giant sunflowers...and watermelons...now just tell me how to grow thme in containers =)
One of the nicest watermelons we've grown is a volunteer, but not in a container. They need lots of calcium, we're told.
Some of these things are heavy feeders and as long as the container had the feed, I think it could be done. I have a nice tomatillo in a container. It has gotten more fertilizer and intense heat than the ones in the garden and it is doing much more. I think next year, this will control how I do them. The garden ones grow, bloom, make baskets, but no green fruit.
The 4th of July Paulonia is going really well and I've snipped it back four times.