Lesson learned: Zucchini needs more space than I provided for it. Probably a box all of it's own. I think we are going to have to make due this year though.
In the picture you can see our hot pepper plants in front the massive zucchini in the middle back dwarfing out our two basil plants on the right and a smaller zucchini plant on the left that I will have to pull out. Our second box isn't quite as impressive because I had to restart most of those plants.