We may receive a commission on purchases made from links. Pumice stones are often praised for their top-notch cleaning abilities — and that doesn't just apply to your feet. This natural stone is ...
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% Pumice? Considering 100+ summers?
Do any of you keep your trees in 100% pumice? - Bonsai Nut
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.
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 similar to what I think of as lava rock. From what I've seen of pumice and lava, I think there's a spectrum between the two.
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 favor of lava rock just because it looks nicer mixed with akadama than pumice does, but everyone was going...
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 $23.50 for a 45-lb bag. So, due to my laziness, I've shifted the lava portion of my mixes to pumice. My pines have been extremely healthy in 100% pumice.