Annuals forum: question about zinnias

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Name: My name is Monika...
Chicago :)
*Where flowers bloom so does HOPE!*
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xoxomonisia
Aug 10, 2016 9:43 AM CST
Hi everyone... new here... does anyone know what would cause a soon to be blooming zinnia to wilt over? it has lots of others stems that produced beautiful flowers... but one wilted. Thank you in advance.
Name: ZenMan
rural Kansas (Zone 5b)
Kansas 5b
Annuals Keeper of Poultry Enjoys or suffers cold winters Bee Lover Dragonflies Garden Photography
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ZenMan
Aug 10, 2016 5:32 PM CST
Hi Monika,

Welcome to these National Gardening Association forums.

"...does anyone know what would cause a soon to be blooming zinnia to wilt over?"

I don't understand what you are asking. You say it is "a soon to be blooming zinnia" and then apparently you say it has lots of other stems that produced beautiful flowers. If it is a single plant already with several blooms and just one branch is wilted, why not just cut off the wilted branch?

A zinnia plant could wilt for lack of water. There are lots of reasons why a zinnia branch could "wilt". It could be just mechanical damage from a bird landing on the branch and being too heavy for it. A dog could have bumped into the plant. Some more description could help explain your problem, or possibly a picture of it would help.

ZM Confused
[Last edited by ZenMan - Aug 10, 2016 5:34 PM (+)]
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Name: My name is Monika...
Chicago :)
*Where flowers bloom so does HOPE!*
Garden Photography Morning Glories Butterflies Daylilies Hummingbirder
Image
xoxomonisia
Aug 11, 2016 10:03 AM CST
Thumb of 2016-08-11/xoxomonisia/91824a

Here is the stem






Thumb of 2016-08-11/xoxomonisia/6e318f

The wilted bloom and the blooming zinnia next to from the same branch




Thumb of 2016-08-11/xoxomonisia/3173d6

Wilted bloom


So....should I cut this wilted bloom off? What would cause this? I've started growing zinnias 4 years ago..never had a problem til now.

[Last edited by xoxomonisia - Aug 11, 2016 10:06 AM (+)]
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Name: ZenMan
rural Kansas (Zone 5b)
Kansas 5b
Annuals Keeper of Poultry Enjoys or suffers cold winters Bee Lover Dragonflies Garden Photography
Hybridizer Region: United States of America Hummingbirder Butterflies Seed Starter Garden Ideas: Level 2
ZenMan
Aug 11, 2016 9:08 PM CST
Hi Monika,

Your pictures show the wilted branch very well. Since only one branch is affected, and the rest of your zinnias seem too be fine, the only concern is whether this is a problem that is likely to spread. The pair of big leaves next to the dying or dead part of the branch seem fine. If a kid shot the zinnia with a BB gun, some damage like this could occur.

I have quite a few zinnias, and the only time I have seen damage like this was from a stalk borer - a moth larva caterpillar that burrows into the stem and eats it way internally inside the stem, which dies. But this doesn't look like typical stalk borer damage -- they usually enter the central stem via a hole near ground level.

As long as this problem doesn't start to spread, you can essentially do nothing and watch for further developments. I'm only half kidding about the BB gun. Keep us posted for further developments. Your zinnias are a little crowded, but they seem to be healthy looking, except for that one dead branch.

ZM

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