Dogwood tree leaves look bad
Help! 3 Dogwood trees, all in the ground for over a year. Leaves started turning brown around the edges. Plenty of rain and some sun... especially in the last month.. Good drainage as they are on a slope.. two are within 30ft of each other, other one is more than 300ft away with trees in between. Fungus maybe? Root rot? Help! I don't want to lose them!
I live just north of Vancouver, WA
Thanks in advance,