For those tomato plants, expect to be pruning vines constantly like Mel suggests. As for radishes, I find I didn't plant nearly enough with 2 squares and planted a half-dozen more. hehe. I like salad.

I understand corn needs more than what you're planting for proper germination, but don't quote me on that.

I've got blueberries in their own bed. They're highbush varieties, not dwarfs, but I've given them a 10x6 bed and planted them 4 feet apart taking up the entire bed. They'll grow to fill it in over time. I don't have any experience with low bush varieties, but I do know that blueberries require VERY acidic soil, like 4.5 pH.

Hope that helps. Enjoy your garden!

Here is a link that might be useful: Sinfonian's garden adventure

Since the tomatoes are determinates, pruning would be a very bad thing....you wouldn't get any tomatoes. They are going to need quite a bit more space than you've allotted them. I think determinates need a 3x3 space.

I believe the spacing for kale is 1 per sq ft.

Blueberries do require more acidic soil, but they're also more of a permanent fixture in your garden so they would probably be better off with their own space.

About the corn....I think what Sinfonian meant was you'll need more for pollination (I have no clue how much that might be though, hopefully somone else can chime in with that).

When you trellis the watermelons, just remember they'll need 2 ft of trellis, not just 2 sq ft of soil.

On the last box, the cukes will need to be trellised as well as the pole beans (or at least given a pole...something to climb on).

The rest looks pretty good :) I don't know about spacing for the herbs though, I haven't grown any.

I hope that helps! Good luck with your garden! I'm gardening for the first time and learning a ton as I go :)