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Re: Crushed oyster shell (was: Perlite vs. vermiculite)




----------
> Loren Russell wrote:
> 
> > Note: you DON'T want crushed oyster shell, also available at these
stores.
> > This is a calcium supplement for laying hens.
> 
> Why not?
> -- 
> Brian Cook              b*@interlog.com
> Toronto/Port Perry      Ontario Canada
 

 
Crushed oyster shell is very variable in size, from quarter inch pieces to
fine dust.  I've never used it for hort purposes but I would suspect that
when wetted the particles would settle and form a hard crust.

Perhaps in moderation it would make a good soil amendment for tomatoes?

Dean Arndt
Manitoba, Canada




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