http://www.brighthub.com/members/focogeek.aspxen-UShttp://www.brighthub.com/members/focogeek/kudos.aspxTue, 10 Mar 2009 21:57:30 GMTmaddieg<p>I was so angry when they came out with rubber mulch, because Florida is such an environmentally sensitive state, and the chemicals leached into the groundwater are damaging. </p> <p>That being said, I&#39;ve grown potatoes in tired stacked and filled with hay. I didn&#39;t die, so I&#39;m thinking it&#39;s a pretty safe way to &quot;build a potato mound&quot;.</p> <p> </p>