So I went on vacation to Germany and had to leave the care and watering of my trees to a family member (something Ive always feared). When I returned my myrtle was in need of water as it was wilted. When asked they said they watered it everyday but I doubt that was the case. About 70% of the leaf tips are now yellow and one strange thing is I now have leaves turning orange then falling off. I know the yellow tips are a sign of underwatering but I've never seen the orange discoloring. We also just hit fall about a week ago so i don't know if that has anything to do with it.