Re: Decomposed granite as a mulch
- Subject: Re: Decomposed granite as a mulch
- From: N* S*
- Date: Sun, 3 Feb 2002 19:06:46 -0800
>I have some decomposed granite left over from path-building and I want to
>mulch an iris bed to deter weeds. Would it be a good idea to use the
>granite for that purpose? Any advice will be appreciated.
>
>Carolyn Stone
>Sonoma County, CA
Carolyn, I think that it depends on how decomposed the granite is.
If it has lots of chunks, then it might work like a gravel mulch. If
it is more dirt-like, then it will be like adding dirt to your bed.
Either way, It can keep down the weeds by preventing the seeds that
are already there from sprouting. It won't stop new wee seeds from
settling on the DG and sprouting.
If I were you, I would use it to build up a new planting bed rather
than using it as a mulch. Or, put another layer on your paths... It
will settle after a while anyway.
Nan
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Nan Sterman
San Diego County California
Sunset zone 24, USDA hardiness zone 10b or 11
