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Shady Gardens: bleeding hydrangea

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Forum: Shady GardensReplies: 5, Views: 113
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Saint Louis, MO
(Zone 6a)

July 25, 2010
6:58 AM

Post #7995136

One of the things I like best about some hydrangeas is the evolving color of the blooms as they age.
This one develops a reddish margin around each petal as it ages.
But I've never noticed this phenomenon before:
it looks like the reddish discoloration is a response to minor injury to the petal.
In this case, the injury is a nibble from an insect.
I thought it was interesting.

Thumbnail by Weerobin
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Saint Louis, MO
(Zone 6a)

July 25, 2010
6:59 AM

Post #7995139

Here's a closer view.

Thumbnail by Weerobin
Click the image for an enlarged view.

(Arlene) Southold, NY
(Zone 7a)

July 25, 2010
7:21 AM

Post #7995173

Interesting. I'll have to go see if I have any bleeding on mine.

How did you find out that it's caused by an insect? Just curious.
Saint Louis, MO
(Zone 6a)

July 25, 2010
7:54 AM

Post #7995219

I don't know for sure - just guessing, based on the little hole in the petal.


central, NJ
(Zone 6b)

July 25, 2010
1:25 PM

Post #7995871

That IS interesting
Hannibal, NY
(Zone 6a)

July 26, 2010
7:15 PM

Post #7999100

I would say your guess is absolutely right, Weerobin. I think the injury to the petal just hurried the coloration along.

Paniculata hydrangeas have a tendency to do that also.

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