Mixed hedge planted 2 years ago. Clipped back last Februray, grew great this year. Over the last month however leaves on whitethorns plants only have gone white and some of the trees are starting to look dead. Do you have any idea what it is and can it be cured.
Last November I planted a mixed natural hedge of whitethorn, blacktorn, carpinus, hazel, guilder rose & spindle. Can you please advise what month is the best to cut back the whitethorn & what height should I cut it to. Also should I cut back the other varieties mentioned above at the same time.