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Enclosing raised beds


OK,  I know this topic has been bandied about before... but I keep 
coming across differing opinions in gardening books.

The topic:   to use or not to use PT lumber to enclose raised beds

Also:    	 to use or not to use old railroad ties to enclose raised 
                    beds

I received a new gardening book for Mother's Day (Jeff Ball's 60 
Minute Vegetalbe Garden) and it reiterates the use of PT and ties for 
this.

I'm not an OG fanatic, but I am a bit concerned about statments such 
as "PT and ties leach arsenic into the soil".  Ther are some old 
(really old) ties on our property (left by previous owners) being 
used as a knee high retaining wall in which ants abound.  My husband 
pointed out "That arsenic dosen't seem to be bothering those ants."

Right now, my raised bed is not enclosed (just sloped sides), but I 
would like to set up a permanent raised bed system in coming years.

So what's the dirt (pun intended) : )  on this topic....anyone??


Mary Ellen Broome
LAN/Database Manager
Development Services
Berry College
Rome, Georgia


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