BushDoctor
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on November 13, 2017
I fear that it would be a bad idea to bring them back into dormancy from here. You may want to plant them in container, and grow them indoors until spring.
Here is an article that will explain how to properly winter these: https://www.gardeningknowhow.com/ornamental/bulbs/dahlia/storing-dahlia-tubers.htm
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