Related: The 40 Most Popular House Plants for Your Home The practice of putting rocks at the bottom of a planter comes from the belief that it adds drainage—that water will pool down between the ...

that has been eroded by water. Limestone: Sedimentary rock composed of calcium carbonate. Microbial mat: Filamentous microbes forming a cover on a surface, such as lake bottom. Oxic: Containing ...

We all want what is best for our beloved houseplants. So, if there's a chance that putting rocks at the bottom of a planter is going to help them flourish, any good plant parent would do it, right?

"In the early days of our planet, volcanic rocks erupted on the ocean floor and were then altered by hot water as they cooled down and solidified. Over time, these water-rich rocks were buried ...

Then, at night, the temperature drops and the water expands as it turns to ice, splitting the rock like a sledgehammer to a wedge. The next day, under the beating sun, the ice melts and trickles ...