Trunk size inquiry

[RyManUtah]

Plotting some beds out for development and was wondering about trunk size of  Sabal minor & Brahea moorei.

i know they aren’t “trunking” but I understand Sabal minor at least does grow a subterranean trunk, how much space would one need to account for things like patio / sprinkler pipes / retaining walls, etc? 

my searching leads my to pictures of trunking specimen.. 
 

one area is going to be full sun, that’s why I’m looking into Brahea moorei, as I prefer the look of more shaded S. Minor  

 

[Allen]

I'm not sure of the question but minor take very long to grow above ground trunk if any.  minor do well in full sun or part shade.  S. Minor can be sized anywhere from small varieties to 6' tall x 6' wide ones.

[TexasColdHardyPalms]

Sabal minor varieties vary greatly in size.  I don't remember seeing any visible trunk on moorei. 

[newtopalmsMD]

As for girth of sabal minor subterranean trunk, I can't imagine it would be wider than the above ground drip line.  As for depth, 6 feet according to:

https://www.plantdelights.com/blogs/articles/sabal-minor-scrub-palmetto-palm#:~:text=Unlike%20other%20southeast%20native%20palms,ground%20to%20nearly%206'%20deep. 

 

Edited July 27, 2020 by newtopalmsMD
fix mistakes

[TexasColdHardyPalms]

I looked back through my pics and moorei do have a trunk the same size as sabal minor. 

[RyManUtah]

Thanks for the responses!.
I don’t mind an above ground trunk, although I prefer them for their shorter height and screening abilities. 

I was mostly concerned about the depth and width of underground trunks, so they don’t interfere with underground structure, and have room to grow freely.

I may have to pick a different area. Several feet of underground trunk may not be feasible. It’s a narrow area with a lot going on underneath ha.