The Q&A Archives: Dahlia Division - "dwarf" Dahlias

Question: Your site has much information about large dahlias. I have small ones. Is the propagation method the same as for large ones? Does the tuber division (after winter storage) entail cutting away all old dried tubers and retain a single tuber with a bud to produce the next crop of dahlias? Or does this smaller dahlia warrant a cluster of tubers to produce flowers the following year?

Answer: Seed grown dahlias are often sold as bedding annuals in the spring. Over the summer they usually mature and develop tubers that can be handled the same as any other dahlia. So the propagation method would be the same. Lift and store the clusters of tubers, then divide them carefully so that each individual tuber has a bit of stem attached to it. Without a bit of stem, the tuber will not grow.

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