How to Build a Vertical Garden from Soda Bottles
https://www.wikihow.com/Build-a-Vertical-Garden-from-Soda-Bottles
Here is a way to maximize your limited porch or garden space by growing vertically. You'll learn to make drip-irrigating garden towers out of recycled 2-liter soda bottles. This method works well for growing flowers, herbs, and small veggies.
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