max wrote in
:

Redwood is primarily used for the chunks/chips that are used because
the redwood has a chemical in it to try and suppress other species
seeds from germinating.
max

mac davis wrote in
:

I wonder if that might be where they get that playground chip stuff
that they used to call "tan bark" or maybe "tanbark"?



I think, but am not sure, that the bark from Sierra pines (jefferson, or
'vanilla' pine is typical) is also used. Tends to chunkiness, rather than
the stringyness, that redwood bark often shows.

And sometimes, you want the plant suppression, and other times, you don't.

Around here, the tree services will bury you with 'the mix of the day', for
free, so they don't have to cart it off somewhere. 8" of that stuff does
wonders for weed suppression. ;-)

Patriarch