I love the models from andi11 but i want it self watering so here is the remix ;-)
Print without supports.
Use 3 or more walls.
10% or more Infill.
You need to print:
12x Self Watering Seedling bottom,
12x Self Watering Seedling Container,
1x Self Watering Seedling Tray,
1x Stopfer45x45 (just if you want).
The author remixed this model.
Now its self watering