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- Q.Mexican Sunflower Plant Leaned To The Ground After Healthy Rain - During the week of August 20th, we experienced some intense periods of rain. One Mexican Sunflower plant, at least ...
- Q.Should I Pinch Out Growing Shoots Of Tithonia - I didn’t last year and they grew about 6 feet tall and had few flowers.
- Q.Mexican Sunflowers Are, One-by-one, Starting To Wilt And Die - I started about 2 dozen from seed, set them about 2 weeks ago at 6-8 inches. Now some are wilting ...
- Q.Diseased Tithonia? - I gave a friend a tithonia plant and she sent me a picture of the blooms. It was a ...
- Q.My Tithonia Has Buds With A Flower That Has Formed It The Centre Part And No Petals - My plant looks healthy but the flowers are strange as they have all formed just the centre part without any ...
- Q.Why Are The Leaves Curling Under On My Young Mexican Sunflower Plants? - My young mexican sunflower plants started having leaves curl under for the last week. It is still getting cold at ...
- Q.Tithonia Leaves Dying, Plant Thriving - I planted these tithonia plants indoors from seed and transplanted into the garden successfully. They have been flowering and are ...
Asked by
Chicago Cubs on
August 29, 2018
Herndon, VAQ.Mexican Sunflower plant leaned to the ground after healthy rain
During the week of August 20th, we experienced some intense periods of rain. One Mexican Sunflower plant, at least 7.5' tall, leaned all the way to ground. We got to it a couple of days later, staked it, and gave it some water. When this occurs, can the plant survive? Is it probable? We would like to see its flowers bloom in September when the Monarch butterflies pass through on their way to Mexico. Thank you...
Answered by
BushDoctor on
August 31, 2018
Certified ExpertA.It will likely survive, but it will help to add soil or mulch around the base to cover up any exposed roots, or anything that needs to be below the soil line. Staking it will be the best option until you can build the soil around it.
It is best to make sure that it is planted deep enough, and kept topped off with soil as it erodes, or compacts.
This article will give you more information on the care of these plants: https://www.gardeningknowhow.com/ornamental/flowers/mexican-sunflower/planting-mexican-sunflowers.htm
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- Asked by
Anonymous on
April 20, 2020Q.Should I pinch out growing shoots of tithonia
I didn’t last year and they grew about 6 feet tall and had few flowers.
- Answered by
GKH_Susan on
April 21, 2020
Certified ExpertA.Your Tithonia is also known as Mexican Sunflower. I think pinching it back may be helpful, but you may be having some other problems, too, such as not enough sun. Here are a couple of articles that should help:
https://www.gardeningknowhow.com/ornamental/flowers/sunflower/no-blooms-on-sunflowers.htm
Was this answer useful?00 - Asked by
Anonymous on
May 18, 2020Q.Mexican sunflowers are, one-by-one, starting to wilt and die
I started about 2 dozen from seed, set them about 2 weeks ago at 6-8 inches. Now some are wilting and dying, 3 so far.
- Answered by
GKH_Susan on
May 19, 2020
Certified ExpertA.It could be from a burrowing animal or a fungal disease such as verticillium wilt.
These articles will help you: https://www.gardeningknowhow.com/plant-problems/pests/animals/vole-control.htm
https://www.gardeningknowhow.com/plant-problems/disease/verticillium-wilt-treatment.htm
Was this answer useful?00 - Asked by
Anonymous on
June 26, 2020Q.Diseased tithonia?
I gave a friend a tithonia plant and she sent me a picture of the blooms. It was a bloom without petals. It reminded me of aster yellow disease
- Answered by
GKH_Susan on
June 26, 2020
Certified ExpertA.It looks like aster yellows to me too. There is no cure, so the infected plant should be removed to the trash.
https://www.gardeningknowhow.com/plant-problems/disease/aster-yellows-disease.htm
Was this answer useful?00 - Asked by
Anonymous on
September 14, 2020Q.My tithonia has buds with a flower that has formed it the centre part and no petals
My plant looks healthy but the flowers are strange as they have all formed just the centre part without any petals. Can anyone explain why. I am adding a photo to clarify
- Answered by
GKH_Susan on
September 15, 2020
Certified ExpertA.Here are some possibilities: aster yellows disease, thrips, or mites.
https://www.gardeningknowhow.com/plant-problems/disease/aster-yellows-disease.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-thrips.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/what-are-eriophyid-mites.htm
Was this answer useful?00 - Asked by
Anonymous on
April 19, 2021Q.Why Are The Leaves Curling Under On My Young Mexican Sunflower Plants?
My young mexican sunflower plants started having leaves curl under for the last week. It is still getting cold at night and I thought that was the initial cause but we've had some nice days and they're just getting worse. Do they need to be transplated to larger pots? I have 2 in larger pots already and one of them is starting to get curled leaves also.
- Answered by
GKH_Susan on
April 20, 2021
Certified ExpertA.They may be trying to stay warm if it is cold sitting in that window. Try moving them further from the window or add a sheer curtain for warmth. Also, water when the soil is dry.
https://www.gardeningknowhow.com/garden-how-to/propagation/seeds/troubleshooting-seedling-issues.htm
Was this answer useful?00 - Asked by
Cathy Vakil on
July 26, 2021
K0H 1H0Q.Tithonia Leaves Dying, Plant Thriving
I planted these tithonia plants indoors from seed and transplanted into the garden successfully. They have been flowering and are thriving, except some of the lower leaves turn yellow and brown and then completely die. They first get reddish/brown at the distal edges, then yellow further into the leaf, and then completely brown and dried up, and then fall off. I don't know if this is a nutritional deficit, or an infection or is just the normal process of older leaves dying off.
- Answered by
BushDoctor on
July 27, 2021
Certified ExpertA.This is, definitely, a fungal infection. This can happen when soils remain too wet without a chance to dry out. Saturated soils make for a good breeding grounds for fungi, and likely it has taken hold. fungicides will be necessary, and keeping the soil full of beneficial microbes will help, as well.
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/what-are-microbes-in-soil.htm
https://www.gardeningknowhow.com/ornamental/fungus-lichen/mycorrhizal-fungi-information.htm
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