80mm diameter extra thick sphagnum moss column with a drip layer

I could print it without supports, but there will be some imperfections, which will not affect the use.

The lid that controls the dripping water is reverse threaded. At first, I couldn't screw it on, but then I found that brute force works, just press it on directly.

The moss column is very thick and sturdy. There are two types of ground plugs, and I personally think the four-cornered one is more stable. I used matte PETG printing. The threads are quite tight, so you can fill the soil first and then screw it on.