Leicestershire, United Kingdom
I planted two "Red Robin" bushes 19 years ago. These have developed into a mature hedge approx. 10 feet high by about 25 feet wide and have been perfectly healthy. However, from late summer/early autumn part of one of these "bushes" has started to "die" with the leaves becoming dull and leathery but not droping from the branches. I have since cut away most of the "dead" wood but would like to know the possible causes for this occurrence. Your replies will be much appreciated.
- 23 Oct, 2011