I bought a Pieris variegata this year, and since we don't have acid soil, I kept in a pot. Unfortunately one part part of it (possibly because it was totally shaded by another plant) has died off, giving me a very unbalanced plant. I'd really like to cut out the dead part and prune it to a better shape, but don't know the rules. When? How? How much? Any advice would be very welcome.
- 25 Nov, 2011