May 4, 2020 · I normally do 100% DE, last season I tried pumice and really liked it. I was considering doing a 50/50 mix of DE and pumice for some JBPs. Would you that be just as …

Dec 3, 2014 · How does lava and pumice compare as far as moisture retention, aeration, and CEC? I was thinking of only using one or the other along with akadama for next seasons …

Jul 28, 2009 · Has anyone here used pumice stone as a medium? It looks similar to lava rock but seems more porous. Is it equivalent better or worse.

Feb 28, 2025 · I was using 50-50 pumice and lava, but the lava has to be sifted on site at a landscape supplier, while high-quality, bonsai-appropriate pumice is available "locally" (2 …

May 4, 2018 · Many forms of pumice are more porous and lighter than lava - hold more water than lava. Many forms of pumice can be crushed between your fingers. Others are pretty darn …

Aug 10, 2020 · Clearly, pumice holds more water than the other two. Lava and leca are close, and have more air filled porosity. So if your pots are not holding enough water, add more pumice to …

Mar 28, 2021 · I have used both kiryu and european pumice for some time now, mixed with akadama and whatever else I have handy. I can tell you that kiryu and pumice are very similar …

Sep 9, 2025 · I've mixed BYOS (Lava/Bonsai Block) with Pumice and Coco Coir (prebonsai, no maples). If you use anything with Monto, double check the size. There was a notice …

Feb 28, 2025 · The Idaho pumice is also 10% heavier, but that could be due to the aggregate size of the Idaho pumice being smaller and more uniform, and therefore there are smaller air pockets.

Feb 28, 2025 · Going back to pumice (and adding the possible confounding factors of pumice provenance), whenever people on the west coast (esp central valley and SW regions) report …