to NGA
Can you update your info to reflect where you live? Its easier to help you when we know as much about the conditions as possible. But if you are on that water schedule, I suspect Southern California.
Philodendron like to be evenly moist but not soggy - if you are on the same watering schedule as the previous owners, water shouldn't be the problem unless the sprinklers aren't actually watering the shrubs. Have you checked to make sure the water is going where it should?
Did you fertilize recently? To me, it looks like fertilizer burn.
Daisy
