The water cycle is a self contained process: water is absorbed by the roots, transpired into the air, and then condenses down back to the bottom of the bottle. Photosynthesis creates the necessary oxygen and moisture.
And so David has been able to leave this amazing bottle garden under his stairs for decades! The garden started off with a quarter of a pint of water and it was only in 1972 that it was watered.
Want to make your own? Such a beautiful garden doesn’t get much easier than this!
If you or anyone you know is looking for an interesting way of decorating your home, this is such a cool and unique idea! Thanks for the inspiration, David!