anybody hear of using growstone I know of a hydroponics store who will sell 1.5 cubic feet for 20 $ instead of pumice

rhawes

Shohin
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I heard someone mention hydroponics store selling pumice, but I did not see that and saw the growstone and it says can be used instead of pumice does anybody have experience using this product or even heard of using this for bonsai?
 

Bonsai Obsessed

Seedling
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Unfortunately the manufacturer of grow stone is out of business last I heard and whatever is on the market is what most places have in their warehouse.
I was bummed as I have been using it in my bonsai mix, it will soak up water and hold it for release, very light material and seems to have the same impact on roots development. I like it as a substitute in my soils- I add it to trees that like a moist soil and don’t want to dry out!
 
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