I went out to some retired doctor's (who has apparently been doing bonsai for about 40 years) bonsai nursery in Maryland and was moved emotionally by this pine for some reason. I promptly bought it up in my excitement. When I finally got home to admire it I started removing some of the pebbles as I thought they didn't quite work with this tree to find that this tree is pretty much entirely planted in mud! I feel as if this isn't the best growing environment for my tree, but also realize now might not be the best time for a repot. What would you guys recommend I do?