Disclaimer: This post was originally posted by Newbie, petern6827. This user is located in NE MA Zone 6A. This was originally posted on May 18, 2013.
For what its worth, I used knee-highs for the last two years (as was suggested), and would almost be afraid to stop using them if, in fact, the yield might go up without them! The production out of the three then five boxes (with AWS) was fantastic. More than enough tomatoes, squash, cucumbers, eggplant and peppers for us, plus plenty to give away. And, clean up at season end was, of course, super easy.
Peter