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[CLA]

The information on the wiki wasn't quite clear on that, and forum search turned up nothing. My own experience isn't sufficiently certain enough, so I figured I'd ask here:


Do smoothed/constructed floors prevent trees from growing - even if there's water from time to time on these tiles?
In particular, will a sewer system with smoothed floors suffer from tree clogging?

What about paved roads for sewer floors? Will that work?
Will paved roads on the surface allow for tree regrowth if the whole map gets flooded temporarily?

[Quietust]

Smoothed natural stone will not prevent plant growth. Constructed floors, however, will work just fine.
Paved roads are sort of in between - shrubs and saplings will appear, but every 500 frames the road will "purge" the terrain beneath it, destroying the plants and also resetting the floor to random "rough" tiles.

Roads use the least amount of materials, but they can cause a minor amount of lag if you have a lot of them (since plants will be constantly created and destroyed). Constructed floors use more materials, but they prevent the plants from showing up in the first place.

[CLA]

Thank you.

[Northen_Wolf]

Smoothed natural stone will not prevent plant growth. Constructed floors, however, will work just fine.
Paved roads are sort of in between - shrubs and saplings will appear, but every 500 frames the road will "purge" the terrain beneath it, destroying the plants and also resetting the floor to random "rough" tiles.

Roads use the least amount of materials, but they can cause a minor amount of lag if you have a lot of them (since plants will be constantly created and destroyed). Constructed floors use more materials, but they prevent the plants from showing up in the first place.

Will growing shrub/sapling revert smoothed tile back to rough?
What happens if I smooth a tile and later cover it with 7/7 water, will it turn "muddy" or will it stay smoothed? What about engraved tile?

[nanomage]

I'd like just to add that there's a cheap (right to the point of being an exploit) way to ensure no trees will grow where you don't want them to.
Just designate the desired area as a stockpile that accepts nothing. This requires no materials and no dwarf labor investments.
Shrubs will grow under a stockpile, and saplings will appear, but they will never grow into mature trees. You will never see them, too.

[GreatWyrmGold]

Smoothed natural stone will not prevent plant growth. Constructed floors, however, will work just fine.
Paved roads are sort of in between - shrubs and saplings will appear, but every 500 frames the road will "purge" the terrain beneath it, destroying the plants and also resetting the floor to random "rough" tiles.

Roads use the least amount of materials, but they can cause a minor amount of lag if you have a lot of them (since plants will be constantly created and destroyed). Constructed floors use more materials, but they prevent the plants from showing up in the first place.

What happens if the constructed tile gets muddy?

[Quietust]

Will growing shrub/sapling revert smoothed tile back to rough?

Yes - shrubs will turn it back into stone, and trees will turn it into soil.

What happens if I smooth a tile and later cover it with 7/7 water, will it turn "muddy" or will it stay smoothed? What about engraved tile?

It will become a "muddy smooth floor", and eventually a plant will grow there.
If there was an engraving there, the engraving will be destroyed, and if it was a masterwork, then "the impertinent vegetation" will deface it and cause an unhappy thought.

What happens if the constructed tile gets muddy?

Absolutely nothing.

[GreatWyrmGold]

Huh. Well, you know what you're talking about, but I thought people have grown plants on muddied constructed floors.