Question: 

Is it permissible to pluck leaves or flowers from a masjids garden without the permission of the عام or members of the masjid board ? If you do need permission will asking a board member of the masjid suffice ? 

Answer: 

If the leaves or flowers have no value then it is allowed but if they are worth even a minute amount then it must be bought from the masjid.iv 

AND ALLAH TA'AALA ALONE IN HIS INFINITE KNOWLEDGE KNOWS BEST