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Dahlia storage #947723

Asked October 26, 2026, 4:42 PM EDT

Hello! What medium should I use for storing Dahlia tubers? Also, what kind of container? Plastic container? Shoe box? Thanks, I have not historically been successful.

Olmsted County Minnesota

Expert Response

Thanks for the question.  Carefully dig the dahlia bulbs by loosening the soil on all sides of the plant before lifting the clump of roots and soil. They then need to be cleaned and cured for 1 to 3 days at 60 - 70F. Store in a shoe box or paper bag at 40 to 50F, many gardener store them in a cool basement.  They can be stored naked with vermiculite or wood shavings.

Remember to periodically (monthly) check stored bulbs during the storage season. Remove any damaged or rotting material.

In cases where tuberous roots like dahlias have some rot, cut back until you reach clean white, fleshy tissue again. These structures may need attention and care even during their dormant period.

Here is a link to more information: https://extension.umn.edu/garden-and-home/yard-and-garden/gardening-in-minnesota/planting-bulbs-tubers-and-rhizomes#storing-tender-bulbs-1403111

Paul -Master Gardener volunteer

An Ask Extension Expert Replied October 26, 2026, 8:31 PM EDT

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