Posted: 06/09/2015 at 21:21
There have been a lot of shrubs with chlorotic leaves like this, this year. We have had in on Honeysuckles, Viburnum, Roses and different types of Budlejas too. We think it was as a result of the very changeable temperatures and varying amounts of rain in early Spring. Many of our shrubs have now got proper green leaves and many of the yellow ones have fallen over the Summer.
I think with a little luck, they will all recover next year.