dark spots on oregano leaves

[KiloJKilo]

All of my oregano leaves have a consistent slightly dark spot in the center of the leaves. Is this normal? I have attached some pictures, however it is very difficult to see the actual spot.

[img]https://img.photobucket.com/albums/v299/ptchat/2010-06-29103644.jpg[/img]

[img]https://img.photobucket.com/albums/v299/ptchat/2010-06-29103405.jpg[/img]

[img]https://img.photobucket.com/albums/v299/ptchat/2010-06-29102312.jpg[/img]

[img]https://img.photobucket.com/albums/v299/ptchat/2010-06-29102250.jpg[/img]

[Kisal]

You did a good job with your photos. Even my old eyes can see the darkened area in the center.

I couldn't find any leaf disease of oregano that would look like that, except perhaps, in the very early stages. The spots on your plant don't resemble any of the pictures I looked at.

To me, it looks almost like the leaves were somehow bruised. That part of the leaf would be the weakest and the place where the leaf would be likely to bend during periods of heavy wind, or if the plant were accidentally knocked over. Has it been stormy in your area? Could another person have bumped the container and knocked it over, then set it back upright and not mentioned it?

I would keep an eye on it and see if any changes occur. If the spots begin to look wet, or brownish and dried, post some more pictures.

Sorry I can't offer a definitive answer for you.

[KiloJKilo]

It's not possible to have physical damage. They are inside in a container with no contact with anything except water. I ruled that out after every leaf on all the plants showed the exact same mark. It would seem to be some kind of biological anomaly.

[KiloJKilo]

here is another pic of one of the greek oregano's leaf

[img]https://img.photobucket.com/albums/v299/ptchat/oreganoleaf.jpg[/img]

[applestar]

I'm puzzled. I'm not growing oregano this year, but those leaves look nothing like oregano I know. Is it because it's "Greek" oregano?

[rainbowgardener]

No, Greek oregano still looks like oregano:

https://dibear.files.wordpress.com/2009/05/copy-of-greek-oregano.jpg

I'm thinking this plant was mis-identified somehow and isn't really oregano

Kilo - what does it smell like when you crush a leaf?

[KiloJKilo]

Thanks to all who have responded so far. I am starting to think that I did not get Greek oregano inside my Greek oregano seed packet. When I crush it, it smells to me like fresh spinach, or grass I guess. It doesn't really smell like oregano, or anything familiar. Here is a picture of the plant.

[img]https://img.photobucket.com/albums/v299/ptchat/2010-06-29213021.jpg[/img]

[applestar]

Oh, now see, THAT looks like a Lady's Thumbprint which DOES have a dark spot (or "thumbprint") on each of its leaves. If it's any consolation, it's an edible wild green.

[rainbowgardener]

Definitely not oregano then, if no oregano smell.

Seed companies seem to have done worse than usual this year re keeping seeds labelled correctly. We had several people write in here about that. I personally planted seeds from a packet that was supposed to be thyme and they all turned out to be some kind of mint. I've never had that experience before (mislabelled seeds).

[KiloJKilo]

yep, looks like I am going to pull them and start over. thanks to all who helped