Mexican Sunflower (Tithonia rotundifolia)

1 company sells this plant

Botanical names:
Tithonia rotundifolia Accepted
Helianthus speciosus Synonym
Tagetes rotundifolia Synonym
Tithonia speciosa Synonym

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Annual
Sun Requirements: Full Sun
Water Preferences: Mesic
Dry Mesic
Dry
Plant Height: 4 to 6 feet
Plant Spread: 2.5 to 3 feet
Flowers: Showy
Flower Color: Orange
Flower Time: Summer
Late summer or early fall
Dynamic Accumulator: P (Phosphorus)
Wildlife Attractant: Bees
Butterflies
Hummingbirds
Propagation: Seeds: Needs specific temperature: 70F
Suitable for wintersowing
Sow in situ
Start indoors
Other info: Start 6 - 8 weeks if starting indoors.

Image

Photo gallery:
Location: my garden, Arvada, ColoradoDate: august
By tabby
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Location: Central TexasDate: 2015-06-22
By Esperanza
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Location: Mysore, IndiaDate: 2013-11-01When I sowed seeds from the packet, I expected the Red, but these
By Dinu
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Location: Enterprise, Al. 36330Date: 2016-08-04#Pollination   Mexican Sunflower with butterflies
By Seedfork
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Location: ILDate: 2015-09-04#Pollination Golden Northern Bumble Bee (Bombus fervidus) on Mexi
By molanic
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Location: Enterprise, Al. 36330Date: 2015-05-21
By Seedfork
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Location: In my zone 8 gardenDate: 2017-06-13
By sarahbugw
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Location: In my zone 8 gardenDate: 2017-06-14
By sarahbugw
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Location: Athol, MADate: 2017-09-13It's 6 feet tall, I'm only 5!
By joannakat
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Location: Botanical Gardens of the State of Georgia...Athens, GaDate: 2017-10-05Mexican Sunflower 002
By dawiz1753
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Location: On a garden tourDate: Jul 27, 2008 1:09 PM
By Calif_Sue
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Location: Lily fence - full sunDate: 2008-0819Very attractive to bees.
By pirl
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Location: Central TexasDate: 2015-06-22
By Esperanza
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Location: Missouri Botanical Garden, St LouisDate: 2017-08-09
By jmorth
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Location: On a garden tourDate: Jul 27, 2008 1:08 PM
By Calif_Sue
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Courtesy Outsidepride
By vic
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Location: Lily fence - full sunDate: 2008-0819Keeping the bees busy.
By pirl
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Location: Allentown, PennsylvaniaDate: 2015-07-18
By plantrob
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Image
By jimard8
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Location: Athol, MADate: 2017-08-26
By joannakat
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Location: Athol, MADate: 2017-09-16This is about 6 feet in the air!
By joannakat
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Location: Athol, MADate: 2017-09-20This plant is now 7 feet tall! Will soon have blooms all over. Fo
By joannakat
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Location: Athol, MADate: 2017-09-20Too tall for me to photograph from above!
By joannakat
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Location: Botanical Gardens of the State of Georgia...Athens, GaDate: 2017-10-12Mexican Sunflower 001
By dawiz1753
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Location: Fountain, FloridaDate: 2011-10-12
By gingin
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By chelle
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Location: central IllinoisDate: 2015-02-17
By jmorth
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Location: Roberta GeorgiaDate: Augustwith butterflies and hyacinth vine
By stone
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Location: Lily fence - full sunDate: 2008-0723
By pirl
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Location: Lily fence - full sunDate: 2008-0518Six seedlings emerged. I don't remember how many I planted.
By pirl
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Location: Lily fence - full sunDate: 2008-0819Just three months from when they emerged.
By pirl
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Location: Lily fence - full sunDate: 2008-0723
By pirl
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Location: Lily fence - full sunDate: 2008-0811Here it's around 5' tall but grew to well over 6' tall.
By pirl
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 Photo Courtesy of Select Seeds. Used with permission.
By Joy
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Comments:
Posted by Newyorkrita (North Shore, Long Island, NY ) on Sep 29, 2011 6:55 PM

Flowers are highly attractive to both butterflies and hummingbirds. On top of that Goldfinches like to eat the seeds if you leave the dried flower heads. A very useful and beautiful flower.

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Posted by vitrsna (Colima, Mexico - Zone 11a) on Feb 14, 2015 1:27 PM

Although Tithonia rotundifolia is referred to as "Mexican Sunflower" in the US, it is not a sunflower but an Asteraceae.

The mature plants may need a good strong stake if exposed to high winds and/or heavy rains. I have had excellent results with 1/4" heavy duty PVC tubes for drinking water, found in the plumbing sections of stores that carry such things. The tubes are about 3.5 feet long and I pound them about 12 inches into the ground with a rubber hammer. I use marbles to plug each end. I add the top marble after I have pounded the stake into the ground for a bit of decor and whimsy. With these stakes, none of the Tithonia uprooted during the rainy (hurricane) season, but I did lose a few branches.

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Posted by stone (near Macon Georgia (USA) - Zone 8a) on Aug 25, 2013 8:29 AM

Tithonia is a drought lover.
In my dry sand garden in the full sun, when it hasn't rained, the plants look great!
When grown in clay soil with regular watering, the plants get huge, and flop. There's no way to stake them enough to force them to stand.
Very attractive to butterflies.
Tithonia has naturalized in my zone 8 garden. All I have to do is thin.

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Plant Events from our members
Seedfork On May 19, 2015 Bloomed
Seedfork On March 9, 2015 Seeds germinated
Self sown seeds starting to pop up all around the location of the plant I started from seed last year.
lovesblooms On March 5, 2016 Seeds sown
indoors
lovesblooms On March 5, 2016 Seeds germinated
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
Blue arrow clarification by chelle Jul 1, 2013 4:19 PM 0
Blooming tree ID please? by pod May 27, 2018 1:09 PM 18
Annuals 2017 by islander Oct 26, 2017 2:26 PM 41
"Mexican Torch flower" by pattybrown Aug 8, 2016 2:50 PM 2
Can you identify this plant? by DV Jul 23, 2016 9:11 PM 3
Favorite Annuals? by vma4922 Jul 22, 2017 4:02 AM 125
Red Aphids on False Sunflower (Heliopsis helianthoides) by Shell Jul 11, 2017 2:15 PM 6
South florida by Valery Apr 20, 2015 10:32 PM 23
Beefriends and Other Friends too!! two and II by dirtdorphins Aug 17, 2016 9:33 AM 1,345
Garden Chat and Photos by Catmint20906 Jan 2, 2016 11:47 AM 3,043
WANTED: I give up--anyone have tithonias? by lovesblooms Jun 14, 2014 10:49 PM 16

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