One of the main garden tasks that I wanted to complete this fall was to begin dividing the dahlia tubers. After the stems of the dahlia plants had turned black because of freeze, I allowed them to stay in the ground another week. At this time, there should have been more than enough time for new growth “eyes” to show.
Dahlia tubers which are packed closely together will need to be separated very carefully, with the use of very sharp pruners. I like to start by cutting the entire clump in half. I find that this makes the whole process easier and more manageable.
After dividing the dahlia tuber into as many individual tubers as you would like, don’t forget to sanitize your tools in order to prevent the spread of dahlia viruses from one plant to another. In our next post, we’ll talk a little more about storing the dahlia tubers for the winter. Have you ever divided dahlia tubers before? I’d love to hear all about your experiences in the comments below. I hope you’re having a great day!