每日吃瓜

Hi, I've noticed that my Ilex Crenata is turning its leaves into dark green, brown and eventually falling off. Is this a sign of the tree dying please?

thanks

More information where is it placed in the garden, full, sun shade? How are you watering? Picture would help

Thanks for reply

Since yesterday it is outside. I have changed its position from inside behind a window (where it has been sitting for 3 months) to outside in a balcony but in shade. Last week it started to grow very tiny white flowers but they dried before growing more. I water every now and then, every 3 days approximately. I check it frequently to see that the soil is moist all the time. I will attach a picture below. Most of it is green, however yesterday I picked out lots of brown leaves off it.