I have had a variegated maple in my garden for twenty years - at least until this year it was. I know about pruning out the green stuff and did it regularly whenever the need arose. There was slightly more reversion last year (probably about 5%) than usual but I got rid of it. This year however it has come out almost totally green (there's about 2% of variegated branches). What could cause this sudden and overwhelming reversion and is there anything that can be done?
- 22 Jun, 2012