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- Q.Why Are The Coreopsis Dying? - I planted Jethro Tull coreopsis about a month ago. They are starting to brown and die, starting with the innermost ...
- Q.Coreopsis Bubs Never Open - I have two coreopsis plants in my front yard. The foliage is lush and healthy and there are many buds. ...
- Q.Can I Cut Back Leaf Coreoposis Lanceolata That Have Bloomed Beautifully This Sprig? If I Do Cut This Back Will It Rebloom Later I - n the summer/fall? Coreoposis was planted last fall and I covered with mulch to protect from the cold and the ...
- Q.Y CORIOPSIS’ ARE FLOPPING OVER FROM THE CENTER OF THE PLANT, HOW CAN I FIX IT/ SHOULD AI JUST CUT THE WHOLE PLANT BACK, I HAVE S - EVERAL HATE TO LOSE THEM OKFI I HAVE BEEN DEADHEADING THEM UT THEY JUST GOT PRETTY TALL AND ARE LAYING ...
Asked by
djlevin on
May 25, 2021
20906Q.Why Are The Coreopsis Dying?
I planted Jethro Tull coreopsis about a month ago. They are starting to brown and die, starting with the innermost leaves. What am I doing wrong? I have been watering every 3 days using drip irrigation (1 gph for 1 hour).
Answered by
BushDoctor on
May 26, 2021
Certified ExpertA.This looks like a bacterial infection, likely, from a little too much water.
Rather than watering on schedule, make sure to water when the soil dries out down to about 3 inches, thoroughly. I would even say to let them go even longer than that, though. They are a drought tolerant wildflower, and they will not tolerate overwatering. \
These articles will help:
https://www.gardeningknowhow.com/ornamental/flowers/coreopsis/growing-coreopsis-flowers.htm
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm
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- Asked by
megtreb on
September 8, 2021
08060Q.Coreopsis Bubs Never Open
I have two coreopsis plants in my front yard. The foliage is lush and healthy and there are many buds. But they turn dark in the center and never open. The other plants in the garden, agastache, gaillardia, fleabane, azalea, coneflower, creeping thyme, and dianthus are all doing very well. What could the trouble be?
- Answered by
BushDoctor on
September 8, 2021
Certified ExpertA.Unfortunately, your photos did not come through. I am unable to assess the damage. It could be that there is a lack of phosphorus or potassium in the soil, though. If the green growth is lush, but the flowering is not what it should be, this would be my first suspect.
These articles will help you to test your soil:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
This article will help you to care for the flower:
https://www.gardeningknowhow.com/ornamental/flowers/coreopsis/growing-coreopsis-flowers.htm
Was this answer useful?00 - Asked by
monicashoemaker on
June 20, 2022
21842Q.Can I Cut Back Leaf Coreoposis Lanceolata That Have Bloomed Beautifully This Sprig? If I Do Cut This Back Will It Rebloom Later I
n the summer/fall? Coreoposis was planted last fall and I covered with mulch to protect from the cold and the plants grew great and flowered this spring. The plants are over 36\" tall and have very few flowers left to bloom. See my question above.
- Answered by
BushDoctor on
June 20, 2022
Certified ExpertA.Yes, this should be deadheaded continuously throughout the summer!
https://www.gardeningknowhow.com/ornamental/flowers/coreopsis/growing-coreopsis-flowers.htm
Was this answer useful?00 - Asked by
DENNIE on
July 21, 2022
NORMAN OKLAHOMAQ.Y CORIOPSIS’ ARE FLOPPING OVER FROM THE CENTER OF THE PLANT, HOW CAN I FIX IT/ SHOULD AI JUST CUT THE WHOLE PLANT BACK, I HAVE S
EVERAL HATE TO LOSE THEM OKFI I HAVE BEEN DEADHEADING THEM UT THEY JUST GOT PRETTY TALL AND ARE LAYING ON THE GROUND,
- Answered by
BushDoctor on
July 21, 2022
Certified ExpertA.Generally, this can be chalked up to "Too Much Care", unfortunately. Watering just a little too often, feeding too much, or overall caring for these as you would a garden variety will cause them to grow too fast and flop over.
This article will offer some information, and ways to fix the issue:
https://www.gardeningknowhow.com/ornamental/flowers/fgen/how-to-keep-wildflowers-upright.htm
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