Re: Pine bark fines
perennials@hort.net
  • Subject: Re: Pine bark fines
  • From: &* P* L* <lindsey@mallorn.com>
  • Date: Tue, 14 Jun 2011 13:42:13 -0400 (EDT)

----- Original Message -----
> 
> I live in the middle fo the woods and one year I shredded a lot of
> small branches that had collected around the place. When I used them
> for mulch, I discovered that they appeared to suck all the nitrogen
> out of the soil as they decomposed and I lost many plants. However,
> another factor may have been that some of the branches were from
> black walnut trees.

Hi Bill,

I've had the same experience; any mulch that has to break down takes
nitrogen away from the soil.

I always add extra nitrogen (46-0-0) to my soil mixes that incorporate
bark fines.  This Old House recommends top-dressing with fertilizer
before mulching as well.

Chris

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