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In Terraria, the mud block seems a little useless, I read on the crappy Wikia page that Mud blocks can be used to grow mushrooms in some fashion.
From Mud on Wikia:
Mud is slightly darker than normal Dirt. It will sustain Underground Jungle grass as well as Mushroom Grass, but only at below-zero depths.
The largest single source of Mud in any given world is the Underground Jungle.
Does anyone know how to do this?
Should I plant mud blocks next to some green growth?