What have you fed it in the past 2 weeks?
How long has it been in that physical location?
Did you test the soil before putting it there?
Did you add anything to the soil when you did?

My hunch is a) you put peat moss in the soil and have low pH, or b) you are in the southern hemisphere and put that plant out just in the past couple days without an acclimation period and it is sunburnt all to hell.