Wisteria Vines
Q.

Wisteria Hardiness

Anonymous added on April 8, 2011 | Answered

I live in Columbus, OH and am wondering how hardy wisteria is.  Below what temp do I need before covering my blossoms that are already formed? It hasn't bloomed the last couple years due to the frost.

A.
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Nikki
Certified GKH Gardening Expert
Answered on April 9, 2011

It should be hardy in Columbus and the blooms should not have a problem with the frost in your area. I think it may not be blooming due to a lack of phosphorus. Add some phosphorus to the soil. This article will help:
https://www.gardeningknowhow.com/ornamental/vines/wisteria/wisteria-blooming-problems.htm

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