The tevaplanter basically functions like an inside-out planter.
It is also a vessel for water and acts as a water bank for the plants that grow out of it.
Solely relying on water and the tevaplanter's unique design to distribute the water to the plant, the tevaplanter removes the need for any dirt or soil. Tevaplanter was the #1 Product of the Day on Product Hunt on May 6, 2020.
Mentioned in this answer
terraplanter
Grow your plants inside-out with no soil, only water.