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[Karnewarrior]

How far underground do you have to go to get tower-caps? Can i build a large cavern, floodgates, the like 1 z-level below the surface and still get them?

thanks for all your help.

[Foxbyte]

How far underground do you have to go to get tower-caps? Can i build a large cavern, floodgates, the like 1 z-level below the surface and still get them?

thanks for all your help.

Depth means nothing. You need to breach an underground river or lake in order to grow tower-caps. Once you do, any wet tile will begin sprouting shrugs and 'caps as long as there is no debris [rocks, mostly] on that tile.

[Karnewarrior]

I was talking about a surface river, but flooding it underground and then letting it dry up. think

___~~~___
___~~~!!!!!
__________

where    _  =  ground, ~  =  water, and !  = area to be flooded. would tower-caps grow there?

[Elliott_Thinas]

I was talking about a surface river, but flooding it underground and then letting it dry up. think

___~~~___
___~~~!!!!!
__________

where    _  =  ground, ~  =  water, and !  = area to be flooded. would tower-caps grow there?

Not unless you've breached an underground river or lake. I've breached an underground river then I just used aquifer water to grow the towercaps in; the discovery is the essential part, not what kind of water you use.

[Captain Xenon]

and if you do breach a cave river or pool, then you will have shrubs and trees grow on any underground soil/sand as well. this can be inconvenient if you have a tree grow to block the wrong doorway, or worse yet an important drain tunnel.

[XSI]

As long as you found the underground water feature it doesn't matter where the water used for irrigation comes from, to explain: once the miner takes away the rock holding the underground pool/river separate from the fort, all the spores of the underground plants and towercaps come flying in through the air, and they may land to grow on any patch of muddy ground.

[Albedo]

Muddy or non-muddy, tho' some players believe they grow much better on muddy (some debate as to that atm.)

[Puzzlemaker]

Muddy or non-muddy, tho' some players believe they grow much better on muddy (some debate as to that atm.)

Think it's like a farm, where it can grow on either soil OR muddied stone.

[JubalHarshaw]

Muddy or non-muddy, tho' some players believe they grow much better on muddy (some debate as to that atm.)

Currently working on a tree farm - I have two areas; one is muddy, the other simply soil ... a bit of time has passed, I have some tower-caps and shrubs growing in the muddy area but not yet in the soil.

YMMV.

[Demonic Spoon]

I have noticed that Tower Caps will not grow on soil unless there is another soil layer beneath it.

[Neruz]

I have noticed that Tower Caps will not grow on soil unless there is another soil layer beneath it.

Correct, Trees in general will only grow on soil if there is a soil wall beneath them. Tower Caps are the one exception with their muddy rock, and that exceptionness appears to be hardcoded.

[Albedo]

I disagree.

I have noticed that Tower Caps will not grow on soil unless there is another soil layer beneath it.

Mine do.  Trees don't, but TC's do.

This discussion/debate/confusion seems to keep cropping up.  I have no problem with TC farms over a solid bed of rock, OR over a mined-out layer of rock.

I'm not sure why some people have trouble with this.  I worry that there's some element we're all missing, like what was recently clarified re planting farmplots on muddied Above Ground stone.

[Neruz]

I've had plenty of TC's grow on muddied rock, i've never seen them grow on an unmuddied dirt floor on a rock wall.

[Kietharr]

I have noticed that Tower Caps will not grow on soil unless there is another soil layer beneath it.

Also, I've noticed that a muddied stone wall below the tile will function as 'soil' for the tower caps on soil above. A few tower caps started growing on the dirt around my dried up well.

[Jeff Carr]

How big of an area do you usually set aside for your tree farms?  I'm about to build my first, and set aside a 16x16 area, with a reservoir to re-flood it when necessary, but I'm not sure if that'll be big enough to fully supply my fortress.

I have magma, but I'm building a pretty huge stone and glass megaconstruction.