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Hibiscus trionum |
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| Common name |
flower of an hour |
| Family |
malvaceae |
| Life cycle |
annual |
| Flowers |
yellow/black (summer) |
| Size |
12" |
| Light |
sun |
| Cultural notes |
ordinary garden soil |
From seed  |
self-seeds in our garden
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From its vigorous self-seeding tendencies, it's easy to see why flower of an hour would be listed as an invasive species in some states. But that's not to say it's not a nice little plant. The flowers share that in-your-face attitude of most mallow family members, albeit at a lowlier level than most others.
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We left this plant behind in our Pennsylvania garden (and wish it well); we don't grow it in Houston. One or more images of this plant are included in my stock photo catalog About my plant portraits
PlantLinks to other web pages about Hibiscus trionum
Visitors to this page have left the following comments| Penny | Oct 30, 2011 | Thank You!!! for identifying this plant!!!!!!! I have written many nurseries and garden societies and they all had no idea, except that it was in the mallow family (which I could guess). If I Googled "mallow" I never got anything with a BLACK center. Again, THANKs! |
| Paul Cowie | Jul 08, 2012 | Wonderful to find the name at last! I have battled for months to find out what it is. It grows wild next to the road near my house - Umkomaas Kwazulu-Natal South Africa. |
| Pamela Anderson | Sep 16, 2014 | This plant came up volunteer after I planted a Knock- Out Rose from the nursery. I finally found out what it is and I am saving some seed to plant next spring. Carlisle ,Kentucky |
| Selina Kim Vickerman-Prince | Feb 24, 2015 | Straight to the point... this is a wonderful web page. I look forward to visiting it frequently.
Selina - East London ZA |
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