Hi all, wondering what soil mix has produced the best health for Japanese black pines here in Colorado. Also, what particle size have you had success using? My plan is to go with a Boon mix at 1/16, but open to ideas. I just bought a black pine (http://www.driftwoodbonsai.com/store-1/japanese-black-pine-68) from Driftwood Bonsai and it is ready for a bonsai pot.
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Great! Thanks, Mike!
I would consider how often you are able to water. If you are able to water whenever the soil dries out you can have good success with the coarser/drier mix. If you don't have that luxury, use the finer mix. Container size is also important; if it is in a small container that dries out quicker, you might want to use the finer mix.
Actually, looking at the Mirai site, seems like 1/4 is a good bet for pines. Seeing that we're in a dryer climate, maybe 1/16 is not the worst idea, but I think I'll go with 1/4.