Like Gina it's been the drought, and not being able to water properly. The plants are all showing signs of stress. I do not know what the long term outlook will be on some of the plants. Usually when plants have been stressed they have a rought time making it through the winter, and lots of times they are very susceptible to disease. Time will tell. We have been getting rain this fall but, it pours 1-2 inches then doesn't rain again for a month. This may help the overall drought conditions but it's not helping the plants. And not being able to water with a hose has been difficult. They need water on a regular basis if they are going to survive