I read about the wicking principle from a book I skimmed through at Barnes and Noble called Incredible Vegetables from Self-Watering Containers. It had lots of information about the basics behind how plants grow and the author goes pretty in depth about ways to grow organically, soil mixes, compost, etc. The self watering containers intrigued me so I looked into it a little more...
I found a how-to on a self-watering container. http://hometown.aol.com/jmalt31/myhomepage/Earthbox.PDF
I am no expert on the topic at hand, so I am unsure if the selfwatering container from the website will adapt just as easily to growing weed or not. I would assume so considering how close pot and herbs are related, but I know pot doesn't like wet feet. Anyways, let me quit rambling and jump back to my point.
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The modification I made to the websites plans is I put some rocks in between the water and the soil, so the water and soil are never in direct contact. Also, I placed a "bubble worm" at the bottom to deliver oxygen and water to the roots. Any gardening experts want to swoop in and provide some insightful hints or advice? (knudge-knudge zandor or the likes):thumbsup:

Any other tips for improving the setup are welcomed.
much love,
mjm
(ps, i do not currently have the space needed to experiment with something like this, but I may give it a shot come summertime I'd be happy to see someone else try it out though)