Printed this with the recommended settings and worked just like that.
Only issue I notice is that the inner piece does not entirely fit inside the outer one, there's a small gap in between. Not sure if issue with my print or with the design.
It does keep my dirt wet, however when refilling it, I have to be careful, cause when I put in too much water it leaks out of the aforementioned holes in the front. But if filled up carefully works as intended and provides the plant with water for a long time.