Hi, I have a 13 year old bonsai and noticed this sprout in the soil. It appears very strange and wondered whether this was a baby bonsai growing? Picture is attached, any opinions welcome!
Bonsai are mature trees.
Seedlings are never bonsai.
In that sense, a baby bonsai does not exist. If it comes from the seed of the tree, it will not grow into a bonsai by itself, it will grow into a tree.
However, this looks like a weed.