Hello from Ohio all you beautiful gardeners. Here is my adorable dahlia. She performed her heart out all summer even though a bit crowded in her pot. We cut her all the way back in September and proceeded to ignore her. Today is November 7 and just look at her! I think dahlia is a true perennial in Britain's wonderful climate. But here in zone 6a, our winter temps can go as low as -20f (-29c). We generally have lots of ice and snow. This darling dahlia is my first successful one. Anyone have advice for me to over winter her?