Nellie Stevens trees turning brown and dry. Help!
Just joined and am writing in hopes of getting some advice on bringing my Nellie Stevens holly trees back to life. We bought 10 of them in October, large healthy chunky trees about 9 feet tall. We've been watering religiously as the grower instructed plus as you know, it's been raining and snowing.
Four+ months later, they aren't doing as well as I thought. Many leaves have turned brown and brittle; I've cut off the dry ones at one point, but more have appeared. There are still some green leaves, but lots of brown ones. They are in the full sun spot, no shade at all.
I've posted some images below. Can you please help me with sage advice, either good news or bad? What can I do to help them get healthy? I would hate to chuck them and I can't help but think that if I put new ones over there, they would suffer the same fate. Thank you in advance!