A common mistake in gardens is to plant trees directly in the middle of the turf. The lawn needs frequent watering and weekly mowing in the warm months.
Frequent wetting of trees can create fungus and collar rot, while the brushcutter and lawn mower risk damaging the trunk.
Young trees will adapt better to these conditions during their development, but already mature trees around which a turf is created and completely new water regimes are established will seriously risk decay.
If possible, it is a good idea to clearly separate the lawn areas from those with trees and shrubs.