When I decided to grow watermelon in the raised bed, my father said to me "this is not going to work. It's going to take up too much space." I ignored him and was adamant that I would have watermelon by the end of the summer. Oh how naive I was!
I planted three small watermelon seedlings from Lowe's. They were so cute, and I didn't think they would take over like they did... But man, they are growing and taking over everything!
Below: Take a look!

These watermelon plans share a bed with some roses (mostly dead now because the season has passed), corn, and edible elephant ears. I think the official term is "called taro, but its a variety of the elephant ear decoration plants that many Southern gardeners plant. My family plants the edible variety. We plant them for food. My mom makes a spicy tomato and bean sprout soup with it.
Below: Edible elephant ears
We planted the watermelon 13 inches away from each other, and you would think that would be enough. But it's not! They are growing and starting to intersect with each other. It's like one big line of watermelon leaves. Crazy!
Does anyone have any advice on how I can control its growth? I wouldn't think allowing the vine to grow upwards would work. The watermelons would be too heavy for the vine to support it. Do I just live with this problem with no solution in sight?
Maybe the watermelon fruit at the end of the summer will be my reward.
Below: The watermelon flowers. All male... 
The watermelon isn't the only melon that is spreading and taking over! The cantaloupe has grown and is really taking over too! It has a dozen or so yellow flowers.
Below: The cantaloupe (In the middle of the bed)

One good thing about the cantaloupe is that there is a tiny baby cantaloupe that is going to be formed! It's fuzzy right now, but so very adorable!
Below: The baby cantaloupe and its momma flower
So I pose the question again: how do I control these melons from going wild and taking over?