Shogun610
Masterpiece
Interesting yes of course… the one thing I’m trying to figure out also is , do I put the media under the plants on the rock then exterior roots clamp down with muck to give roots the direction to flow down into the container or do I mix it with muchYou know, you probably do not need to use multiple different potting media. Just use a pumice, akadama blend for the entire planting. You will be watering frequently enough that "special mixes" for those that want more water won't be necessary. All the tree species you mentioned will thrive in a Pumice-Akadama mix. No need to over complicate the potting media.