Wisteria Vines

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  1. Getting a Wisteria to Flower
  2. Wisteria Seedpods
  3. Wisteria Is Not Growing or Blooming
  4. Termites in Our Wisteria and How to Kill the Stump
  5. My Wisteria Is Dying..Leaves Are Yellowing and Drying Up
  6. Wisteria Never Grew or Bloomed
  7. Withering Wisteria?
Asked by Anonymous on November 7, 2010
Getting a Wisteria to Flower

My parents have a Wisteria plant that is 9 years old. It grows on a very sturdy trellis and has never flowered. What can they do to get it to flower?

ANSWERS
Heather
Certified GKH Gardening Expert
Asked by Anonymous on November 17, 2010
Wisteria Seedpods

Should the pods on wisteria be removed?

ANSWERS
Nikki
Certified GKH Gardening Expert

It will not hurt the plant to cut these off. You can remove them at any time, unless you want to use the seeds. Then you should wait until the seed pods are dry before harvesting them.

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Asked by Anonymous on November 24, 2010
Wisteria Is Not Growing or Blooming

I planted a Chinese wisteria at least 6 years ago at my DE beach house. It’s not growing or blooming. It’s on the south side of the back yard a few feet from a plane tree and adjacent to the septic tank. At least twice a year, the back yard is covered with salt water. A neighbor’s wisteria has practically taken over an empty sandy lot (it’s covered the ground, as well as wound around several trees) . What does that wisteria have that mine does not?

ANSWERS
Heather
Certified GKH Gardening Expert

It could be several things. The most common is that it may not have enough sunlight to grow properly. Since it is both stunted and not blooming, this sounds the most likely for yours. Is there anyway you can increase the light it gets, perhaps by thinning out the branches of the tree or by even transplanting it?
This article will help with that:
http://www.gardeningknowhow.com/ornamental/vines/wisteria/transplant-wisteria-vines.htm

 

Your neighbor may also have is different variety of chinese wisteria from you that is just better suited to the conditions you have. You may want to try starting a plant from hers and see if that does not perform better for you. This article will help with that:
http://www.gardeningknowhow.com/ornamental/vines/wisteria/propagating-wisteria-cuttings.htm

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Asked by Anonymous on November 29, 2010
Termites in Our Wisteria and How to Kill the Stump

For years our wisteria has brought us such joy. We even have our Christmas lights strung through the branches. We enjoyed the fabulous fragrance and huge hanging blossoms. This year there was nothing. Not one sign of growth. I kept pruning the sucker shoots however. Just recently I discovered small holes in lots of the branches and powder on the ground. I’m positive termites have had a field day. With sadness we need to have our wisteria cut down. I know the shoots will continue to grow so how do I kill the stump and the sucker shoots.

ANSWERS
Heather
Certified GKH Gardening Expert

It is probably not termites, but rather borers, specifically roundheaded borers. They can get into wisteria and cause damage like you describe. This article has more information:
http://www.ipm.ucdavis.edu/PMG/GARDEN/PLANTS/INVERT/roundheadbore.html

But, if you still want to kill the wisteria, cut it back and paint the fresh cuts with undiluted Round-Up. The plant will "suck" this back into the root system and that will work to kill the roots. Repeat this with any suckers that appear in the next few months.

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Asked by sharonpw on November 30, 2010
My Wisteria Is Dying..Leaves Are Yellowing and Drying Up

It is summer in Australia. It does not have gall. Some roots were cut last week for paving.

ANSWERS
Heather
Certified GKH Gardening Expert

The cut roots are likely the issue, especially if the tap root was cut or damaged. The plant is trying to reduce its size to something the roots can still support. I would recommend a heavy pruning of the wisteria vine so that it better matches the current root system. Also, follow the steps in this article for treating transplant shock. It is currently going through something similar to transplant shock:
http://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm

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Asked by Anonymous on January 9, 2011
Wisteria Never Grew or Bloomed

I paid a landscaper to do my backyard. I requested Wisteria to cover the pergola he put up and two trees (vines?) were planted. One on each side. There were only some green leaves on them when he planted them and they never did well or even bloomed (Both were about 4. 5 feet tall). All plants were only guaranteed for 3 months. After a couple of months, I expressed my concern and was told when the weather got warmer they would be fine. Well, it has been a year now and they never looked well.  I noticed some damage from the weed wacker at the base of trees. Now they look worse than ever. Is there any hope these plants will survive? What is the cost of replacement for each plant if needed?

ANSWERS
Nikki
Certified GKH Gardening Expert

Wisteria are amazingly resistant plants, so I have no doubt they will bounce back. It takes them a year or two to get established before they really take off and bloom. If you foresee the weed whacker continuing to be a problem, I would recommend making small collars for them out of flexible plumbing pipe to keep the weed whacker from doing further damage.

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Asked by bob57 on January 27, 2011
Withering Wisteria?

I need to know what is wrong with my Wisteria vine. It is growing on an aluminum trellis manufactured by Alumacart. The trellis is umbrella shaped and is designed to cause plants to form a canopy like a tree. The vine seems to do fine until it works its way around the trellis, at which point it withers. I water and fertilize regularly, and the soil pH is OK. I am located in South Florida. My other vines are all doing fine. Any suggestions?

ANSWERS
Heather
Certified GKH Gardening Expert

Have you checked how hot the structure gets? If it is in direct light, especially afternoon light, it could be heating to the point where it is cooking the plant on the trellis.

Another possibility would be that the trellis is not stable and shifts in windy weather. This would cause it to rub against the vines and scrape off the bark of the vine, which would kill it above the scrapes.

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