Perlite - 1000 cc

Over dit product

Perlite 1000 cc: a moisture buffer for your growPerlite starts out as volcanic rock with a few percent of water locked inside it. Heat that to around 900 degrees and the water turns to steam, popping the grain open like popcorn until it is several times its original volume. What comes out are light white granules riddled with cavities and cracks. All those openings let perlite take up a serious amount of water, roughly two and a half times its own weight, and then give it back to the air little...