Railroad Ties For Raised Beds In Veggie Garden? - Knowledgebase Question

Name: Debbie J Perkins
Bloomsburg, PA
Question by djperk34
March 31, 2000
I have read two different points of view on the use of railroad ties for raised beds in a vegetable garden. I have read you shouldn't use them, and I recently read (I believe from the Univ. of Vga Horticulture Dept.) that it is fine if the ties are old, but you shouldn't if they are new. What do you think?

I realize that creosote does not leach into the soil, but I know it may be toxic to some plants. Which ones, and what harm, if any can come to humans?


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Answer from NGA
March 31, 2000

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Some forms of creosote and/or components of creosote are known human carcinogens, so contact with the compound is not recommended. Aged ties are less likely to have volatile components that can irritate the lungs and mucous membranes, but you should wear gloves and long-sleeved shirts to prevent skin contact at any rate. Here's a link to a site that provides detailed health effects as well as a good overview of all the chemical compounds known as creosote. And according to this document, some of the components of coal tar creosote, which is used for railroad ties, can leach into soil and groundwater, where they take a long time to biodegrade. Nevertheless, it's still a very commonly-used preservative. I hope this helps you make a decision!

Creosote Chemical Backgrounder: http://www.nsc.org/ehc/ew/chem...

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