I have aFig tree that is seven years old and has been growing in regular potting soil. I am turning it into a bonsai plant. I am aware of how to use a root rake, but wanted to know if you can use a hose to get the hard to reach areas, especially if the plant has been in the ground and there are clumps of dirt that you can't get out? (This happened to an Azalea bush that was in the ground.) Pros and cons on using the hose?