Fabric
Used for: carrying water upward
In this build
Use a clean cotton strip about 30 × 3 cm. It carries water into the soil and is called a wick. Wet it first and check that its raised end stays damp.
A bottle planter with a cloth wickSuggested by the project’s author. Shared attempts below describe what happened when people tried it.
What people tried
No one has shared an attempt here yet. A suggested use is a starting point, not a tested result.
I tried this
An unfinished attempt or something that did not work can be useful to someone else.