Late Bloomer

So I've been talking about it all summer, but I've finally taken the initiative and cleared out the huge planter box that I've got in lieu of a yard & am actually starting to plant stuff! 

What kind of planter am I working with?

It's untreated wood, 5' x 2.5' x 2'. It's raised off the ground, surrounded by chicken wire, and had ventilation/drainage holes in it.

What will I be planting?

Here's the roster for the planter: sweet potatoes, eggplant, sugar snap peas, and rosemary.

Why?

I bought a bunch of seeds earlier in the spring and just never put them to use. A few weeks ago, after I cleared out the first planter we've got (which is a bit smaller) my housemate planted mostly leafy greens & some herbs, in addition to some peas & carrots. I wanted to plant something more substantial though and have always LOVED sweet potatoes. I bought one from the store & after I forgot about it it actually started to grow slips on it's own, so I figured I could put them in the other planter & see what happened. The rest of the stuff I already had seeds for & just wanted to see what would happen if I did companion planting. Plus, I know peas go well with lots of things as they add nitrogen into the soil.

How?

As of now, I have added no compost or anything. If I do it'll be organic as I'm not a big fan of chemicals. So for the time being it's pretty much just dirt, water, & plenty of sunlight. 

I'm going to try to divide the planter in two so that the sweet potato vines don't take over everything. I'll do this by digging a trench to the bottom and inserting a piece of cardboard. It's simple enough & I don't have to go out & buy anything to do it.

I've got a few tools, and for the most part have just been using Google & YouTube to figure things out as I go...