This hack is a game changer if you grow dahlias in zones 5 . In zone 7b, I don’t dig up my dahlia tubers. I leave them in the ground overwinter and end up with two to three times the amount of flowers in spring—months earlier than spring planted tubers! No digging or storing. No wasting hours of my life replanting. This is how to do it: 1. Wait until the first hard frost kills the foliage. This is key to send the tubers into dormancy. 2. If you need to divide, you can do this now and put them ba