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Wisteria Vines Don't Flower

My Wisteria won't bloom.

Hardiness Zone: 6b

By sundrops61 from Brockton, MA


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June 23, 20090 found this helpful

We have a large wisteria & one year it didn't bloom & leaf out like it should (we thought it was dead). We found out that our (stupid) next door neighbor had poured bleach in that area on his side of the fence to kill weeds & it got into our wisteria's root system. Thankfully the wisteria came back the next year. Some years it blooms earlier than others by almost a whole month (depending on the weather). Each year that it blooms then leafs out we breath a sigh of relief (because of our non environmentally friendly neighbor) (who knows WHAT he'll do!). Do you have a neighbor like this who might pour something toxic on or near your wisteria's roots? Or even a dog who pees in the area often.

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June 26, 20090 found this helpful

Be grateful and pull it up while you still can! lol I have this stuff all over my yard and can't stop the spreading of it. The root system is like ropes and it takes over everything. My neighbors started it about 70-80 yrs ago and nothing stops it, I DO mean nothing!

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June 26, 20090 found this helpful

Speaking from experience....

We had wisteria for several years that never bloomed, it grew like crazy but never bloomed. We were told to put a certain fertilizer on it. It was 18-46-0 and potash. I do not remember the portions and when we did it but it did work. I am sure a greenhouse could tell you more.

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June 27, 20090 found this helpful

Actually, I'm in zone5 and I have a wisteria that I planted 4 years ago and this is the first year it bloomed. I was told before I planted it that it could take about 5 years before it had it's first blooms, even though the greenery was taking over the trellis like crazy!

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August 19, 20130 found this helpful

I've been told, that wisteria loves abuse. It's the vines with a purple hue that are the ones the will make the flowers. In the later part of summer, just strip the leaves off. The green part of the vine, are never going to bloom, so I just cut them off. It must work, as this is what mine looked like in early May '13.

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By 0 found this helpful
May 30, 2011

I planted a wisteria vine last spring and it still hasn't bloomed.

By Barbara


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May 30, 20110 found this helpful

I think they're slow to mature. I believe it may be several more years before ti will bloom, depending on how old the vine was when you planted it. Worth the wait, though!

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June 9, 20110 found this helpful

I planted a wisteria vine four years ago. Last year it had one tiny set of blooms. This year it produced two full size sets of blooms. I hope it will do better next year.

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June 23, 20090 found this helpful

We have had huge, healthy wisteria vines for nearly 10 years but have never seen a flower on any of them. What can we do to get them to flower?


Hardiness Zone: 7b

Nancy from Hyannis, MA


Wisteria Vines Don't Flower

Do a root trim. Use a sharp shovel and cut straight down making a circle around the base. Use the branches as a guide to how big to make the circle. It should be the same distance around as the branches are long. An elderly woman in LA told me this and it worked very well for me. (04/24/2008)

By Patti

Wisteria Vines Don't Flower

Hi, Nancy. Years ago in Dodge, TX (yep, a real Texas town) my friend did the major root trimming on her wisteria. Wow, what a difference. For years after that, this incredible plant flowered like it was making up for lost time.

Peace and Blessings,
Joan - Dilley TX (05/02/2008)

By jeg51

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