annual vinca (periwinkle) disease
Until recently I had a nice row of multi-colored vincas next to the lawn. Nice to look out on in the middle of summer.
Then the disease hit them. Now about half are dead. After a little research, I found out some plant breeders in Texas developed a line of vincas RESISTANT to the disease. The seed line is 'Cora'. So, needless to say, I won't buy Home Depot vincas again since I have no idea what variety I'm getting.