victorine,

I don't know if you need to worry about the voles. Check with your neighbors to see if they have been suffering actual vole damage to their ornamentals. If they haven't, I wouldn't worry about it until you suffered known vole damage.

If it develops that voles are an actual problem for you, you can consider Vole control measures. I am not sure there are any "vole resistant annuals", if that is even a known category. Possibly Castor Beans, but they aren't in your list. Although voles may not be a problem for you, I think you should be more concerned about cutworms. They can do serious damage among small plants. I have no idea if any of your plants are resistant to cutworms, but I bet a lot of them aren't.

ZM