My 6 Eagleston Hollies were planted 3 months ago. We've recently experienced high temperature, like most everyone right now, averaging 100 degrees. With the rising temperatures, the trees began to look dry in areas. So, we continued watering through our irrigation system every night for 10 minutes. After we applied mulch and experienced 4-5 days of rain, we noticed that the holly leaves and branches were dying very quickly. We stopped watering at the first sign of trouble. 5 of the 6 hollies now appear to be completely covered with brown leaves. Peeling back a small layer from each trunk, I can see green. I'm no expert and this is my first experience with new hollies. Please, any advice could help...even if it means saving 1 or any of the hollies.
I planted 3 Eagleston Hollies 1 year ago (Oct 2021). In the last month, one of them is experiencing exactly the same symptoms here in Austin. The other two have dropped a few leaves, but look fine. I would also appreciate any advice or information anyone has about what is happening to this one tree.
