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 good as 100% …

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.

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 repotting. I'm in …

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 hours away) for only …

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 firm, more …

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 somewhere about them …

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 in texture, …

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 …

Oct 8, 2024 · Kiryu Kiryu is a pumice-like volcanic particle for acid-loving plants. It's a common ingredient in bonsai mixes. Volume: 13 liters (3.4 gallons) Weight - Small: 17.5 lbs., Medium: 15.9 …