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PostPosted: Wed Feb 12, 2014 8:54 pm 
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Does particle size matter? Is the lava rock recommended the same sort as those they sell in the big box stores?


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PostPosted: Wed Feb 12, 2014 11:15 pm 
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Lava rock and lava sand are two different creatures, even though they're the same material. Lavasand is a relatively fine material that is mixed into the soil. It helps with micro nutrients for the soil and mostly it helps retain moisture.

Lava rock, like the sand (crush rock), is mined from volcanic areas, mostly in Mexico and mostly in the Pinacate mountains. It is used to cover the ground and people often put it on top of landscape cloth. The plastic "cloth" is not a good choice.

You can get lavasand at nurseries and feed stores. I don't know if you can get it at the big box stores. I'm sure you probably can get bags of the rock in more places.

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PostPosted: Sun Mar 02, 2014 10:33 pm 
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Found some lavasand on Ebay!


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PostPosted: Mon Mar 03, 2014 12:00 am 
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It's pretty heavy - the shipping will be astronomical! See if you can't find it in a local nursery before you pay to ship ground up rocks.

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