Fully parametric wall planter, multiple sizes for 1 mount, can be printed without supports.
I would advise for 100% infill to prevent any potential water from dripping.
The inside part is optional.
The fully parametric file is the f3D source file and can be opened and modified inside Fusion360, Here is a tuto on how to do this:
https://imprimantre.com/pour-bien-commencer/liste-des-tutoriels/how-to-use-a-parametric-file

Feel free to improve or modify the current design and a like is always appreciated !

3D PRINTING SETTINGS

-no supports
-100% Infill