Avatar for Amycroberts
May 3, 2020 1:59 PM CST
Thread OP
Park City, Utah
I have two wisteria plants I added to my garden last year, both are potted. (I don't recall for certain the type, but they're either Kentucky or Japanese wisteria.)
I'm trying to decide if they survived the winter. I've peeled a few place in the bark and don't see any green behind the outer layer, yet there are new buds that seem to be forming... is this wisteria still alive?
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Avatar for porkpal
May 3, 2020 2:24 PM CST
Name: Porkpal
Richmond, TX (Zone 9a)
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Perhaps the roots are still alive. The branch you scraped is not. I'd say wait and see.
May 3, 2020 3:43 PM CST
Name: Bea
PNW (Zone 8b)
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Wisteria are really super tough plants. Can you pop the plant out of the pot check the roots. Hopefully the roots did not freeze depending on the winter climate and where stored during winter. If roots are white the plant is alive. Wait a few weeks for newer growth to show. In the mean time trim back long stems back to 5 or six buds to encourage blooms. Do not fertilize. Keep watered with good drainage or better yet plant it ASAP. It will do much better in well draining soil give the roots more area to grow for next seasons blooms.

Post a pic in two weeks... would be wonderful to see the progress.

Below pics taken 5-3-20. This plant is a double Japanese wisteria 30 years old. Trim in summer and always trim back to 3-4 buds every fall for next seasons blooms.

There is a nice tutorial on how to prune wisterias for them to flower every season. https://youtu.be/85dOUnLjCSI

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May 3, 2020 4:25 PM CST
Name: Daisy I
Reno, Nv (Zone 6b)
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I'm sorry but, in a pot in Park City, Utah, there is no chance it survived. Potted plants must be hardy 2 zones below your zone so, you would have to find a wisteria hardy to zone 3 or, put it in the garage for the winter.

There is a slim chance the roots survived but, I wouldn't bet too much on that.
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May 3, 2020 4:33 PM CST
Name: sumire
Reno, Nevada (Zone 6a)
I agree

Wisteria are hardy, but regrettably not quite that hardy. With any luck there'll be at least one root alive.
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