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Re: garden timbers

Square Foot Gardening List - http://www.flinet.com/~gallus/sqft.html

>  I have heard that they are not recommended because of the chemicals. We
use
> landscape timbers now. I hope there is nothing wrong with those.
>
>             Susan S. in Central Florida, zone 9
   I think there may be a release of stuff from PT landscape timbers but it
is so slow that the amount in any crop let alone any one veggy would be very
small.  Just like the great Mercury scare years ago.  Yes there is Mercury
in the fish but to get a harmful dose you would have to eat 20 lbs a week.
On the other hand the railroad ties are already washed by many years rain
and are very open pored so is there a real danger or is it just there.


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