Awesome! I did a similar thing a few years ago with a long cardboard tube that a "sunsetter awning" came in. Cut into about 3 foot sections, I had a few of them set around the garden. After about 3-4 years, they had mostly rotted away. Now those spots are where I go to get "some good dirt." I did not add worms because they just magically appear whenever and wherever organic matter is decomposing.
