Posted: 23/12/2012 at 15:43
Growing climbing beans with sweetcorn works well. These are two of the "three sisters" growing method (google it), the 3rd being squashes. The beans fix nitrogen with nodules on their roots which helps feed the sweetcorn (which loves any feed with high nitrogen.) The beans can be trained to grow up a sweetcorn stem and across to others, helping to support them against wind damage, instead of using twine as you normally do when growing sweetcorn in a block. I normally plant a couple of bean seeds next to each corn plant, once the maize plants are about 30cm tall (if you plant them when the corn is too short, the beans will grow too fast.)
Of course, we need a reasonably sunny summer to grow sweetcorn in the UK - this year was a disaster!