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Recycled pop/soda bottle planters are the best way that I know of to learn how to grow and maintain plants in containers. I’ve justifiably called them the Rosetta Stones of urban greenscaping.
The only thing that has bothered me about these sub-irrigated (aka "self-watering) planters is their height that makes them more difficult to conceal in a cachepot.
The simple solution is to cut off the neck of the bottle to reduce the height of the section that holds the plant. I used a hot knife heated over my gas stove. Doing this also requires lowering the height of the reservoir section.
You can see the significant difference in the photo above. The pop bottle planter 2.0 on the left now fits nicely into a ceramic planter like this one from IKEA. Incidentally, a standard 6” grow pot will not fit into this planter but the 2.0 pop bottle planter does.
I would definitely recommend the 2.0 planters for all indoor plants. It will not work as well for outdoor plants in sunlight because the capacity of the reservoir is reduced.
Look for detailed instructions and an update of this Flickr photo set in the near future.