I have a Jaboticaba bonsai with a "Y" shaped trunk. I wanted to raise the soil line about 2 inches so it touched just below the "V", effectively transforming it into a twin trunk bonsai. I wonder the best way to accomplish that. Thoughts? Pic attached.
The obvious idea is to scrape the trunk at the new desired height, put it into a deeper pot and bury the bottom trunk under soil, hoping the exposed trunk will root. With time I would cut off bottom. Has anyone ever attempted that (with any tree)?
Thanks