ElGringo

AW, nice moss, but be careful. That much can restrict ariation of the soil. I left some to grow once.. pretty fast isn't it? I've heard that if you paint a rock (say if you had a rock-over-rock bonsai) with milk, it grows moss and lichen. Think I'll experiment this year.

I'm a fan of moss on bonsai, the method you suggest using a blender is a good way of cultivation, better than if you take existing moss and try to grow that. A little around the trunk and between nebari sure can help the 'aged' look IMO.

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Richard