Q.planting new dahlias
I’ve been waiting for the last frost date before planting my new dahlias. While in storage, the eyes have grown significantly, some 12 inches long. How should I plant these dahlias? Should I cut back part of the growth? The growth still looks like the eye, no change to green.
It sounds like you should divide your Dahlia tubers.
These links will help
https://www.extension.umn.edu/garden/yard-garden/flowers/growing-dahlias/
https://www.gardeningknowhow.com/ornamental/bulbs/dahlia/rooting-dahlia-cuttings.htm
https://www.gardeningknowhow.com/ornamental/bulbs/dahlia/dividing-dahlia-tubers.htm