I planted 4 emerald arborvitaes in May. I live in central CA and it is regularly hot in summer months. I have them on a drip timer for 20 minutes twice daily. The ground around the roots constantly looks moist. Are they not getting enough water? Could I be over watering? Could it be a soil deficiency? Not sure what the issue could be. I have some pictures I have attached as well. Any advice would be greatly appreciated. Thank you.
