I would swear I read an old Hagedorn blog post recently wherein he makes muck from only cornstarch and moss—no fines. I can't seem to find it, but here's two other blog posts on the topic.
A few photos with captions of our repotting adventures in 2023… A partial soil replacement of a hemlock, with the beginning of a muck wall to hold the soil in. The wall was up to the top when finis…
One of the bonsai benefits of living in the volcanic Pacific Northwest of the U.S. is the geology. There are many dark, irregular rocks out there for rock plantings. This pine was originally a Pond…
I would swear I read an old Hagedorn blog post recently wherein he makes muck from only cornstarch and moss—no fines. I can't seem to find it, but here's two other blog posts on the topic.
A few photos with captions of our repotting adventures in 2023… A partial soil replacement of a hemlock, with the beginning of a muck wall to hold the soil in. The wall was up to the top when finis…
One of the bonsai benefits of living in the volcanic Pacific Northwest of the U.S. is the geology. There are many dark, irregular rocks out there for rock plantings. This pine was originally a Pond…
Nice, that March 2023 post has the most info I've seen from him - I had only seen it mentioned in comments on his earlier posts. Looks like between everyone in this thread, we've nailed down the details.
Like @erich_raudebaugh I've participated in muck wall construction at Crataegus and can confirm the mixture is, (or was at least a few years ago) 1/3 corn starch cooked to peanut butter consistency, 1/3 akadama fines, 1/3 milled sphagnum moss
inoculated with finely pulverized fresh moss and lichens.
It was easy to manipulate, fairly strong and lasted well after initial careful waterings.