As I mentioned in my post about my 2011 vegetable garden, I’m trying out companion planting this year. Companion planting means grouping different crops together “on the theory that they assist each other in nutrient uptake, pest control, pollination, and other factors necessary to increasing crop productivity,” according to Wikipedia.
One grouping I’ll be trying this year is called Three Sisters, a combination of corn, beans, and squash that has been used for centuries by the Native Americans. The corn provides a pole for the beans to climb on and the beans provide nitrogen for the corn. The squash spreads on the ground, creating a living mulch that blocks weeds and keeps moisture in.
Here’s a tutorial on how to put in a Three Sisters vegetable garden. Essentially, you plant the three crops in a mound so that the corn is in the center, the beans are beside the corn, and the squash is on the outside. As everything grows, the corn shoots up, the beans climb the corn, and the squash fills in around the roots. It looks like this:
How has companion planting worked for you?