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Perennials: Geranium stems turning black

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Forum: PerennialsReplies: 3, Views: 109
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July 5, 2010
6:38 AM

Post #7944292

Hi! My geranium stems are slowly turning black. Most of this can be seen as starting from the top of the stem and not from the root. Is this blackleg disease? is it the same as root rot? Some parts of the stem are not completely black but have black holes and if I cut that part the inside of the stem is completely black. A photo is attached.
If anyone knows what this is, can this be treated? I was given 2 solutions to dilute in water and spay the plant and the soil. Will that work? I would appreciate anyone's help. Thank you

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Lizella, GA
(Zone 8a)

July 30, 2010
6:41 PM

Post #8007699

amalo,, just saw your post. I don't know a lot about geraniums, but maybe it's getting too much water? I know they don't like to be too wet.

(Arlene) Southold, NY
(Zone 7a)

July 30, 2010
6:43 PM

Post #8007702

Amalo - what happened with the cutting?

Black stems indicate rot and it's generally from too much water.
Hanceville, AL
(Zone 7a)

April 24, 2012
3:24 PM

Post #9096217

I had one with a black stem and I pulled up and threw away the whole plant. I have tried cutting them back to clean stems before but they always die. I think it is a fungal infection. It is called "black leg". Sorry. Luciee {;^((

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