Originally posted by Trip:

If you remove the floor and flatten or use the make path tool it removes the grass and ferns. Then put your floor back. I have not noticed the weeds regrowing yet.

mine regrow on flattened earth.

Originally posted by Intellect Inside:

Nothing I do to the ground (pickaxe, hoe, cultivator) keeps these types of items from respawning inside my base. Even putting down floorboards doesn't stop it.

my brother used an "out of sight, out of mind" approach. when a dandelion kept respawning in his house he popped the floorboard out, smacked the spot with his pick and put the floor back in