Saturday, November 14, 2009

My wisteria barely showed some beginning signs of leaf buds and then there was nothing. 10 yrs old at least.?

I don't see outwards signs of disease other than no leaves. There was quite a bit of mildew in the garden. I haven't checked for crown gall. Pruning it back the stems did appear to have life in them. I haven't checked in the last month before I put time into heavy pruning.

My wisteria barely showed some beginning signs of leaf buds and then there was nothing. 10 yrs old at least.?
I speak from experience.....we help our next door neighbor cut back his wisteria right after it blooms in the spring to make it bloom the following year. It works every time. We cut it back by as much as 1/3 to 1/2. It RECOVERS quickly. LOL! But it can also be cut back a couple of feet from the tip ends right after it blooms in the spring if you don't want to be so drastic. It blooms heavily every spring and is a beautiful green the rest of the summer.





One year the wisteria kept hitting our neighbor in the face while he was mowing, he got mad and cut it all the way to the ground. The next spring it was so heavy with flowers that you could not see the branches. It was absolutely beautiful! If we had one in our yard, I would cut it to the ground right after it blooms every spring. And like I said above, they recover quickly and are pretty all summer long.





If your lawn fertilizer is washing over into the soil of your wisteria, it will not bloom. Lawn fertilizer will cause pretty green leaves, but no flowers not only on the wisteria but any flower or shrub.





You can do the same with honeysuckles and trumpet vines.
Reply:Chances are good that either 1) they're not getting enough acid in the soil, or 2) that they're getting too much nitrogen, or 3) both.





Wisterias need acidic soil, similar to what works well for azaleas or rhododendrons. A fertilizer like Miracid works well to provide that little extra boost.





The high-nitrogen problem is a little tougher, especially if your wisteria is close to a lawn. Presuming that you fertilize your grass with a product suitable for the lawn, it will have too much nitrogen for a wisteria. The wisteria will make LEAVES like mad - and NEVER bloom. It doesn't get the signals that "times are bad, let's reproduce so we aren't wiped out!" because the plant is getting so much food in the form of nitrogen.





To keep this from happening, keep your lawn fertilizer (or any other high-nitrogen mix) away from the wisteria; assume that the plant has at least as much root under the surface of the soil as it does leaves above the soil, and don't fertilize in that area that you'd think of as the "drip line" if it were a tree. Once the plant is just a *little* stressed for food (which may take another year or two), then it should start to bloom, and may in fact bloom PROFUSELY.





Good luck!
Reply:I planted mine about 8 years ago. This was the first year I saw any flowers. You can't rush this plant. Since you found life, there's still hope. Sometimes they have a bad year. I'd say prune it as if it were healthy.


Best of luck. I'm looking forward to mine being spectacular someday. (Hope I live long enough to see it.)
Reply:try giving it some water

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