Cool..a DIY thread. Here's a pic (taken yesterday) of my tomatoes in their DIY boxes. My first year trying them and so far so good. I'm using them in the greenhouse and starting some outside this week. I also did a little how to for friends of mine that wanted to make some. Same basic idea that has been floating around the web. My variation was with the screen, I got tired of drilling out the covers so used plastic eggcrate for the inside screen. Here is a link to how I made mine, with more photos of them in action
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Dave
http://www.myhudsonplace.com/diyearthboxes.html