Elephant Ears/Dahlias

jtrickSeptember 17, 2008

I notice that Tennesse is in either zone 6-7 and you keep your elephant ears and dahlias in the ground over the winter. Does the temperatures get below zero there? I am in zone 6 and every website says to dig them up and store them over the winter or bring them in the house.

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We leave both in the ground but mulch heavily over them after the first frost.

Come to The Middle Tennessee Plant Swap on Saturday, October 18th at Henry Horton State Park and I'll probably have some Dahlias. Visit our website at: http://www.midtnplantswap.com/

    Bookmark   September 18, 2008 at 2:20PM
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brandon7 TN_zone(7)

Most of Tennessee is now realistically in zone 7 with just a few places in a high 6b or low 8a. I'm in Knoxville (borderline 7b/8a, average yearly low about 11 degrees F) and my dahlias do fine with no special protection. Elephant ears vary depending on the variety. Some are hardy here, some not. As with many types of plants, their ability to survive low temperatures will be greatly affected by soil drainage/moisture.

Here is a link that might be useful: A Somewhat Updated Hardiness Zone Map

    Bookmark   September 18, 2008 at 2:29PM
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Hmmm. I have some dahlias this year. I have never tried leaving them in, but maybe I should? :) I think I will!

    Bookmark   September 19, 2008 at 12:03AM
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