About a month ago as part of a landcaping project we planted about 40-50 African Iris. We are close to the beach and therefore the air has a high salt content especially in the wind. We chose this iris because according to what I read it is fairly tolerant to most conditions. Some say it is moderately salt tolerant while others say it is not. Anyway---about one third of them have died---they turned the color of hay. They got plenty of water and are planted in soil that is over a sandy base. Anyone have experience with African Iris?? Any suggestions?