Shrubs turn brown from inside (need suggestions)
Hi, I recnetly planted 18 shrubs around my front yard.
After a month, everything still looks OK.
But I recently noticed that some shrubs starts to turn brown from inside; and when I noticed it, there are already 3 of them turned completely brown.
I'm pretty sure the watering is not a issue, I have dripping system to each indivdual shrubs.
The system turns on in the morning at 7 AM for 15 mins.
Any idea what would cause the shrubs to turn brown?