Is it possible to grow corn and watermelon in the same plot?

I am a master gardener in a state extension program. I would encourage you to have a garden, I'm a real proponent. However, I will say that you have chosen a challenging start to your career as a gardener. Watermelons are very, very large vines that require a lot of water and care. They can run over your yard for more than 20 feet! I would start with a near watermelon cousin, a cantaloupe, perhaps, or one of the really easy to grow watermelon cousins, which are squash. If you like zucchini squash, they are incredibly easy to grow, and MADLY prolific, and you get quick results. They are planted exactly as watermelon. You should till up the soil, and if it is not particularly fertile and full of compost, I would purchase some and add it. You then make a row of hills about 3 feet apart and 8 inches high. Put 4 or 5 seeds in the hill and keep them nice and damp until you see little "H" shaped leaves come up. When they are stronger, select the strongest seedling and remove the others, or transplant them to other hills. Fertilize lightly with a powder style fertilizer mixed with water and wait for the squash/melons to come. If you plant squash, you should pick them everyday when they get 4 - 5" long, depended on how tender and small you like them. If you plant the watermelon, read the package for the maturity days. It is smartest to plant your crops in an east to west row, so that they will not shade each other, and so that each row shades the other less. You may have time for two crops of squash if you live in the South and have a long growing season. As to the corn, you will want to plant in east to west rows, and understand that they need a LOT of fertilizer to make good ears. I would suggest that you check with your county extension office and your agent in that office for good advice on gardening in your particular area. Enjoy!

Yes, you can grow watermelons in there next year. As you know any kind of melons need a lot of room to grow. Just make sure you have the room for them to vine out. I have seem people use the drip system with plastic bottles, but I never have. It seems like it worked pretty good.

Sure. Just keep the corn to the north so it doesn't shade the watermelon. The melons are sprawlers so make sure you have plenty of room. Also you don't want to grow more than 1.......maybe 2 fruit per vine though the vine may want to grow more. They cannot support more than one fruit.......2 in great soil and plenty of moisture.

I'd bone up on growing both thru web sites: http://ohioline.osu.edu/hyg-fact/1000/1626.html

http://urbanext.illinois.edu/veggies/corn1.html

Yes, You can grow vine plants on the ground around corn and you can also add some pole beans and let them climb the corn. They call squash, corn and pole beans planted together "the three sister", because the grouping works.