Answer:
False
Step-by-step explanation:
When Jem questions Atticus about the cemented tree, Atticus states that the leaves are green and full and that there are no brown patches;
I quote "that tree's as healthy as you are Jem".
However, once Jem states that Mr. Radley said it was sick and dying, Atticus said "maybe it is".
So, due to his prior statements and the fact that he said maybe, rather than totally agree, would lead this question to be false.
Hope it helps.