I bought 5 of these shrubs in May. Everything was good for about a month and a half. All of a sudden one of the shrubs turned brown and then the one next to it also turned brown within a couple of days. It was like one day they were green and then the next day they were brown. It was fast. It is now almost August and I do not see any new growth. The other 3 shrubs are good. Are they dead?