I thought this post was going to be about weed ingame. I need to get my head out of the whiskey bottle.
No, as far as I am aware grassy tiles are as static as dirt as rock as trees as water. Which makes no damn sense, honestly. Regrowth might happen over time the same way zombies evolve over time. Occasional checks, update some tiles spawned. Done wrong it’d be a lagbomb, done right it’d be a minor visual perk unless you were a cow mutant, in which case it would be a lunch perk.
Then I look out at my unkempt lawn and realize patchy shitty dirt/grass tiles would be more likely to shift around over time, rather than consistently overgrow with grass altogether. Or maybe my lawn is just that fucked up, can’t be sure.