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Old 06-16-2015, 10:17 AM
 
Location: Chapel Hill, N.C.
36,504 posts, read 46,040,583 times
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This is my friend's coneflower. We've never seen anything like this before. Looks like alien babies coming from the center. Anybody?
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Old 06-16-2015, 10:20 AM
 
Location: North Beach, MD on the Chesapeake
35,140 posts, read 44,957,937 times
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Going to seed?

I never have any luck with coneflowers but I can grow Black Eyed Susans like they're a weed.
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Old 06-16-2015, 10:29 AM
 
1,327 posts, read 765,328 times
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That has happened to me with Echinacea "Magnus". Some of the flowers were entirely green (the normally brown center part AND the purple petals). I don't remember if I read that it could be a virus or something, but I decided to cut off all those flowers so that they couldn't reseed. I had to do that for several years, and it's seemed to have stopped now (fingers crossed).
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Old 06-16-2015, 10:48 AM
 
Location: Former LI'er Now Rehoboth Beach, DE
8,836 posts, read 11,722,218 times
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Aster Yellow, it is a bacteria. Start digging my friend, they can impact other plants.
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Old 06-16-2015, 11:05 AM
 
Location: Chapel Hill, N.C.
36,504 posts, read 46,040,583 times
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Yikes. jut did some research and it sounds very serious. It is 100 today and entirely too hot for anybody to do anything in the garden for a few days. Hope it never happens to me. Thanks.

Aster Yellows Disease on Echinacea
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Old 06-16-2015, 01:44 PM
 
1,327 posts, read 765,328 times
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Interesting. I had asters in the same garden bed less than 10 feet away from the Echinacea. It took a few years the the deer finally decimated the asters. Maybe that, plus my deadheading, did the trick, who knows.
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Old 06-17-2015, 08:04 AM
 
31,102 posts, read 21,087,622 times
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it's a phytoplasma. they love Echinacea for some reason.

Quote:
A common symptom caused by phytoplasma infection is phyllody, the production of leaf-like structures in place of flowers. Evidence suggests the phytoplasma downregulates a gene involved in petal formation (AP3 and its orthologues) and genes involved in the maintenance of the apical meristem.
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Old 06-26-2015, 05:22 PM
 
Location: Northern Illinois
2,187 posts, read 3,828,084 times
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I lost my coneflowers last summer to Asters Yellow. They said it was "carried" by leafhoppers - nothing else was affected. It is fatal to the flowers though - I dug mine up and threw them in the trash - and the dirt they were growing in as well - then sterilized my shovel.

I had never experienced it before - and I planted new ones this year, but now many and I was hesitant to do so. So far, so good. They did great at our house in Ohio - and I really love them. Will see how it goes this year. They are generally prolific self-seeders, too.
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