That looks like a good idea. My son and daughter in law have issues with voles.hope that works for you.
What a clever idea, Donna. It looks pretty good too. Fingers crossed for you that those voles leave the plants alone.
Donna S, All my plants are in pots in the greenhouse and those voles are always digging in my plants. They especially love living rocks.
A friend just bought something for her vole problem but, as, so far, I haven't had a problem I didn't think to ask what it is though I do know it isn't poisonous. I think it is sound or vibration but I will ask her and see if it is helping.