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[em1LL]

Hi all!

Should I dig out several Z-floors to have the ability to grow the mutiple-tiles underground trees when caverns found? Is there any multiple-tiles underground trees at all?

Thanks in advance.

[khearn]

I've tried a couple of times. Once I was able to get 2 z-level trees to grow, but that was as deep as my tree-farming chamber was. In another fort I tried a 3-z chamber, but none of the saplings grew up after a couple of years. I know that there was a stone layer directly under the farm, which might have been the problem. I probably also had dug out a significant part of the area directly under the farm, which also might have been the issue.

I've been looking for a place where I have at least 4 layers of aquifer-free soil, so I can dig a 3 layer open space with a full layer of soil underneath it. I also want to try a multi-layer soil open space with a un-mined layer of rock directly below the bottom layer of the room to see if the roots will grow into un-mined rock or if they really need a layer of soil below them.

I also want to try on muddied rock with plenty of open space above and unmined rock below.

But yes, it is definitely possible to get multiple z-level trees to grow. I'm just not sure how high they'll get or how long it will take.

  Keith

[Hans Lemurson]

I'm pretty sure that unmined rock below is an essential requirement to Tree Farming.  Whether filling back in with constructed walls or obsidian will work, I do not know.

[Slogo]

Will they actually give more than 1 lumber yield? I've never recovered more than seemingly one log from an underground tree (compared to the plentiful bounty of outdoor trees) and I thought some of my cavern trees were 2-3z levels.

[Agent_Irons]

I think it depends on the tree. The mushroom trees(tower-cap, goblin-cap, etc) give one log but the fungiwoods give more, in my experience.

[Solon64]

All of them will give multiple logs based on how big they are.  If you only seem to have found 1 log, check around the area and even on higher or lower z-levels, the logs themselves fall in a direction, not all in one big pile.  I keep getting logs falling into the underground lake nearby making them irretrievable, or at least difficult enough to obtain that it's not worth my time.

[Aachen]

Though my sample is presently small (half-dozen), I have yet to see a goblin cap yield more than one log.

Bloodthorns, though .... they provide many.