Read this ^^ and think about potential problems you might have with this... if you don't know of any.. start a journal so I can see too.what about runoff?
Good question. I don't know for sure -but I would think that the canvas would get soaked and wick out the bottom not pour out...but the canvas being soaked with your plants right againts it would still burn the crap out of them. You would likely at the very least get PM if not mold... and you could do plastic, but if you're going to the trouble to make something.. why not just make something.. like in the link in my sig.. It's not done, you can see where its going though.With that thick canvas is it possible that the water would be absorbed and wick down through the canvas rather than poor out of the bottom of each section in a river and into the next?
Wear open toe? cnwhat about runoff?
Drip cleanwhat about runoff?