By Elaine1000
United Kingdom 
My fagus slyvatica purpurea look like they are dieing
12 Jul, 2016
Answers
Are they big mature ones or young ones?
12 Jul, 2016
they are not mature until they are 50 yrs old , give or take.
you said they are they closely planted or in different places in the garden?
13 Jul, 2016
Sorry - what I meant was are they fairly recently planted or well settled and growing OK up to now.
13 Jul, 2016
What are the exact symptoms, Elaine, and is there any chance of a picture?
12 Jul, 2016