Ok well, I'll admit the plan @ral
In the water reservoir there are 2cm diameter strings of polypropylene going down till the bottom of the barrel, which should get the water to the soil by capillarity (tested many, this was the best string).
It is automatically refilled with a floating valve, so no energy needed.
The small orange thing in the enter is a #wormcomposting tower, so I just throw my kitchen scraps in there and it should replenish the fertility.
Every hole of course is where a plant will go.
@arteteco This is way more sophisticated than I imagined it to be! 😲
I wish you good luck with this concept.