Planet Veggie Garden has a blog entry tonight that offers a simple, yet terrific, solution to a common problem: Where and how to grow non-irradiated, safe salad greens.
One of the three blog authors offers a solution: Fill a banana box with potting soil and plant lettuce and spinach seeds in it.
She points out that produce boxes are heavy duty enough to last two seasons. Put heavy paper over that rectangular hole in the bottom. Put the box on bricks or wood so air can circulate under them.
Fill the box with potting soil or amended soil from your garden. Click on the link above to read their entire column.