Q.Freeze Tolerance
I have two established gardenia bushes on the south side of my house and they have been doing well for eight years. Tonight the temperature is supposed to drop to 20. Do I need to cover or mulch them?

Nikki
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on January 7, 2011
I would definitely cover them up for the night. This article can help you with this: https://www.gardeningknowhow.com/plant-problems/environmental/protect-plants-in-freeze.htm
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