I've recently planted a small row (5 in total) of golden leylandii, to screen an area in my garden, I dug good holes and as the ground seemed quite wet once planted Ive only watered them sporadically as I know they are tough plants, however they are turning brown around the botton speading from the central trunk out wards and progessing upwards. Is this because Ive not watered them enough?
I know lots of you would just say good let them die!!!
Thanks for any suggestions!