I've grow perennials and annuals for many years, but am new to dahlias. I couldn't resist buying several of the Karma series last summer.
After frost I lifted the clump of tubers, dried them for a few days, removing most of the nursery soil, and stored the clumps undivided in a large shallow cardboard box covered in a light soiless mix in a cool basement. Every month or so, I slightly misted the surface of the soil.
So, now my question....I'd like to divide and pot. Most of the tubers are firm, but I can't see any eyes (shoots?)to show me where to cut. What should I do?