I planted an Annabelle this spring, and am not happy with the site (I have a big hosta nearby that's blooming at the same time, and they don't look good together). I'd like to move it this fall. Is that an OK idea, or will it be too hard on Annabelle, since it's still young? It was in a 3-gallon pot when I bought it and has adjusted well and bloomed nicely this summer. Any tips on when and how to move it, other than just getting a nice-sized rootball?