I tried it last year, & it worked pretty well - but I learned through doing that you do need to let the corn grow up a bit before planting the beans (2 weeks sounds about right). Not that I had a big problem, as the beans were pretty sparse - I didn't have my "field crop" garden fenced off yet, & having several 100 lb dogs sit on your crops does damage them - the beans more than the corn. The beans that lived did well, & that corn was stout enough to support anything. I had pumpkins & watermelons around the hills, & all these things seemed to confuse the gophers, as they left the beans alone. I have a small, intensive garden for herbs & salad crops, & I find that putting a few of everything all mixed together makes for less bugs & healthier plants.